OData Control

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The OData control implements the Open Data Protocol (OData). It can be used to query, parse, and update or modify data contained within an OData service.

Syntax

OData

Remarks

The OData Control supports both plaintext and Secure Sockets Layer/Transport Layer Security (SSL/TLS) connections. When connecting over SSL/TLS the SSLServerAuthentication event allows you to check the server identity and other security attributes. The SSLStatus event provides information about the SSL handshake. Additional SSL related settings are also supported via the Config method.

The OData component allows you to easily query OData services and create, update, and delete entries within a service. To query a service, you can set the ServiceRootURI to the service's root URI and ResourcePath to the collection within the service that you wish to query. Optionally you can set the Query*** properties to filter the results. QueryService can then be called to retrieve the results (which can be viewed via the Entry*** properties).

Example 1. Query a Service: OData1.ServiceRootURI = "http://services.odata.org/OData/OData.svc" OData1.ResourcePath = "Products" OData1.QueryService()

To create a new entry, you can set the ServiceRootURI to the service's root URI and ResourcePath to the collection within the service that you wish to add the entry to. The Entry*** properties can be set to the values you wish to use to create the entry. CreateEntry can then be called to create the entry.

Example 2. Create a New Entry: OData1.ServiceRootURI = "http://services.odata.org/OData/OData.svc" OData1.ResourcePath = "Products" OData1.EntryProperties OData1.CreateEntry()

If you wish to update an entry, you can set the ServiceRootURI to the service's root URI and ResourcePath to the specific entry you wish to update. The Entry*** properties can be set to the values you wish to update. UpdateEntry can then be called to update the entry.

Example 3. Update an Entry: OData1.ServiceRootURI = "http://services.odata.org/OData/OData.svc" OData1.ResourcePath = "Products(1)" // Index 1 is the "Name" property. OData1.EntryProperties[1].Value = "MyNewName" OData1.UpdateEntry()

Deleting an entry requires that you first set the ServiceRootURI to the service's root URI and ResourcePath to the specific entry you wish to delete. DeleteEntry can then be called to delete the entry.

Example 4. Delete an Entry: OData1.ServiceRootURI = "http://services.odata.org/OData/OData.svc" OData1.ResourcePath = "Products(1)" OData1.DeleteEntry()

In addition to querying a service and manipulating its containing data, the OData component also allows you to retrieve the schema (metadata document) to determine the structure of a service. After setting ServiceRootURI to the root URI of the service, GetSchema can be called to retrieve the metadata document. The Schema*** properties will be populated upon successful retrieval of the metadata document allowing you to identify the structure of the service.

Example 5. Retrieve the Scheme: OData1.ServiceRootURI = "http://services.odata.org/OData/OData.svc" OData1.GetSchema()

Property List

The following is the full list of the properties of the control with short descriptions. Click on the links for further details.

Method List

The following is the full list of the methods of the control with short descriptions. Click on the links for further details.

Event List

The following is the full list of the events fired by the control with short descriptions. Click on the links for further details.

Config Settings

The following is a list of config settings for the control with short descriptions. Click on the links for further details.

Authorization Property (OData Control)

This property includes the Authorization string to be sent to the server.

Syntax

odatacontrol.Authorization[=string]

Default Value

""

Remarks

If the Authorization property contains a nonempty string, an Authorization HTTP request header is added to the request. This header conveys Authorization information to the server.

A common use for this property is to specify OAuth authorization string.

This property is provided so that the HTTP control can be extended with other security schemes in addition to the authorization schemes already implemented by the control.

The AuthScheme property defines the authentication scheme used. In the case of HTTP Basic Authentication (default), every time User and Password are set, they are Base64 encoded, and the result is put in the Authorization property in the form "Basic [encoded-user-password]".

Data Type

String

AuthScheme Property (OData Control)

The authentication scheme to use when server authentication is required.

Syntax

odatacontrol.AuthScheme[=integer]

Possible Values

authBasic(0), 
authDigest(1), 
authProprietary(2), 
authNone(3), 
authNtlm(4), 
authNegotiate(5), 
authOAuth(6)

Default Value

0

Remarks

This property will tell the control which type of authorization to perform when the User and Password properties are set.

This property should be set to authNone (3) when no authentication is to be performed.

By default, this property is authBasic (0), and if the User and Password properties are set, the control will attempt HTTP Basic Authentication. If AuthScheme is set to authDigest (1), authNtlm (4), or authNegotiate (5), then Digest, NTLM, or Windows Negotiate (Kerberos) authentication will be attempted instead.

If AuthScheme is set to authProprietary (2), then the authorization token must be supplied through the Authorization property.

If AuthScheme is set to authOAuth (6), then the authorization string must be supplied through the Authorization property.

Note: If you set the Authorization property and AuthScheme is not authProprietary or authOAuth, then the AuthScheme will be set automatically to authProprietary (2) by the control.

For security, changing the value of this property will cause the control to clear the values of User, Password, and Authorization.

Data Type

Integer

ChannelAuthorEmail Property (OData Control)

This property contains the email address of the author.

Syntax

odatacontrol.ChannelAuthorEmail[=string]

Default Value

""

Remarks

This property contains the email address of the author.

This property is not available at design time.

Data Type

String

ChannelAuthorName Property (OData Control)

This property contains the name of the author.

Syntax

odatacontrol.ChannelAuthorName[=string]

Default Value

""

Remarks

This property contains the name of the author.

This property is not available at design time.

Data Type

String

ChannelAuthorUri Property (OData Control)

This property contains the uniform resource identifier (URI) of the author.

Syntax

odatacontrol.ChannelAuthorUri[=string]

Default Value

""

Remarks

This property contains the uniform resource identifier (URI) of the author.

This property is not available at design time.

Data Type

String

ChannelCategoryLabel Property (OData Control)

This property contains a textual description of the label for the category.

Syntax

odatacontrol.ChannelCategoryLabel[=string]

Default Value

""

Remarks

This property contains a textual description of the label for the category.

This property is not available at design time.

Data Type

String

ChannelCategoryScheme Property (OData Control)

This property identifies a categorization scheme.

Syntax

odatacontrol.ChannelCategoryScheme[=string]

Default Value

""

Remarks

This property identifies a categorization scheme.

This property is not available at design time.

Data Type

String

ChannelCategoryTerm Property (OData Control)

This property contains the category to which the entry or feed belongs.

Syntax

odatacontrol.ChannelCategoryTerm[=string]

Default Value

""

Remarks

This property contains the category to which the entry or feed belongs.

This property is not available at design time.

Data Type

String

ChannelContributorEmail Property (OData Control)

This property contains the email address of the contributor.

Syntax

odatacontrol.ChannelContributorEmail[=string]

Default Value

""

Remarks

This property contains the email address of the contributor.

This property is not available at design time.

Data Type

String

ChannelContributorName Property (OData Control)

This property contains the name of the contributor.

Syntax

odatacontrol.ChannelContributorName[=string]

Default Value

""

Remarks

This property contains the name of the contributor.

This property is not available at design time.

Data Type

String

ChannelContributorUri Property (OData Control)

This property contains the uniform resource identifier (URI) of the contributor.

Syntax

odatacontrol.ChannelContributorUri[=string]

Default Value

""

Remarks

This property contains the uniform resource identifier (URI) of the contributor.

This property is not available at design time.

Data Type

String

ChannelGenerator Property (OData Control)

This property identifies the generator of the feed.

Syntax

odatacontrol.ChannelGenerator[=string]

Default Value

""

Remarks

This property identifies the generator of the feed.

This property is not available at design time.

Data Type

String

ChannelIcon Property (OData Control)

This property contains a reference to the image that represents this feed.

Syntax

odatacontrol.ChannelIcon[=string]

Default Value

""

Remarks

This property contains a reference to the image that represents this feed.

This property is not available at design time.

Data Type

String

ChannelId Property (OData Control)

The Id conveys a permanent, universally unique identifier for an entry or feed.

Syntax

odatacontrol.ChannelId[=string]

Default Value

""

Remarks

The Id conveys a permanent, universally unique identifier for an entry or feed. This contains an IRI as defined by RFC 3987.

Data Type

String

ChannelLinkHref Property (OData Control)

This property contains the location of the link.

Syntax

odatacontrol.ChannelLinkHref[=string]

Default Value

""

Remarks

This property contains the location of the link.

This property is not available at design time.

Data Type

String

ChannelLinkHrefLang Property (OData Control)

This property contains the language of the content at the link.

Syntax

odatacontrol.ChannelLinkHrefLang[=string]

Default Value

""

Remarks

This property contains the language of the content at the link.

This property is not available at design time.

Data Type

String

ChannelLinkLength Property (OData Control)

This property contains the length (in bytes) of the content at the link.

Syntax

odatacontrol.ChannelLinkLength[=string]

Default Value

""

Remarks

This property contains the length (in bytes) of the content at the link.

This property is not available at design time.

Data Type

String

ChannelLinkRel Property (OData Control)

This property indicates the relation of the linked content to the feed.

Syntax

odatacontrol.ChannelLinkRel[=string]

Default Value

""

Remarks

This property indicates the relation of the linked content to the feed. The following relations are defined by RFC 4287:

• alternate
• related
• self
• enclosure
• via

This property is not available at design time.

Data Type

String

ChannelLinkTitle Property (OData Control)

This property contains the title of the link.

Syntax

odatacontrol.ChannelLinkTitle[=string]

Default Value

""

Remarks

This property contains the title of the link.

This property is not available at design time.

Data Type

String

ChannelLinkType Property (OData Control)

This property contains the multipurpose internet mail extension (MIME) type of the content at the link.

Syntax

odatacontrol.ChannelLinkType[=string]

Default Value

""

Remarks

This property contains the multipurpose internet mail extension (MIME) type of the content at the link.

This property is not available at design time.

Data Type

String

ChannelLogo Property (OData Control)

This property contains the logo for an image that represents the feed.

Syntax

odatacontrol.ChannelLogo[=string]

Default Value

""

Remarks

This property contains the logo for an image that represents the feed.

This property is not available at design time.

Data Type

String

ChannelRights Property (OData Control)

This property contains information about the rights of the given feed.

Syntax

odatacontrol.ChannelRights[=string]

Default Value

""

Remarks

This property contains information about the rights of the given feed.

This property is not available at design time.

Data Type

String

ChannelRightsTextType Property (OData Control)

This property contains the text type of the rights of the feed.

Syntax

odatacontrol.ChannelRightsTextType[=integer]

Possible Values

ttText(0), 
ttHTML(1), 
ttXHTML(2)

Default Value

0

Remarks

This property contains the text type of the rights of the feed. Atom textual content can be HTML, XHTML, or text.

Data Type

Integer

ChannelSubtitle Property (OData Control)

This property contains a short description of the Atom feed.

Syntax

odatacontrol.ChannelSubtitle[=string]

Default Value

""

Remarks

This property contains a short description of the Atom feed.

Data Type

String

ChannelSubtitleTextType Property (OData Control)

This property contains the text type of the subtitle of the feed.

Syntax

odatacontrol.ChannelSubtitleTextType[=integer]

Possible Values

ttText(0), 
ttHTML(1), 
ttXHTML(2)

Default Value

0

Remarks

This property contains the text type of the subtitle of the feed. Atom textual content can be HTML, XHTML, or text.

Data Type

Integer

ChannelTitle Property (OData Control)

This property contains the title of the current Atom feed.

Syntax

odatacontrol.ChannelTitle[=string]

Default Value

""

Remarks

This property contains the title of the current Atom feed. Typically, the title of the channel is similar to that of the web page where the Atom content is hosted.

Data Type

String

ChannelTitleTextType Property (OData Control)

This property contains the text type of the title of the feed.

Syntax

odatacontrol.ChannelTitleTextType[=integer]

Possible Values

ttText(0), 
ttHTML(1), 
ttXHTML(2)

Default Value

0

Remarks

This property contains the text type of the title of the feed. Atom textual content can be HTML, XHTML, or text.

Data Type

Integer

ChannelUpdated Property (OData Control)

This property contains the date and time that the feed was updated.

Syntax

odatacontrol.ChannelUpdated[=string]

Default Value

""

Remarks

This property contains the date and time that the feed was updated.

Data Type

String

CookieCount Property (OData Control)

The number of records in the Cookie arrays.

Syntax

odatacontrol.CookieCount[=integer]

Default Value

0

Remarks

This property controls the size of the following arrays:

• CookieDomain
• CookieExpiration
• CookieName
• CookiePath
• CookieSecure
• CookieValue

The array indices start at 0 and end at CookieCount - 1.

This property is not available at design time.

Data Type

Integer

CookieDomain Property (OData Control)

This is the domain of a received cookie.

Syntax

odatacontrol.CookieDomain(CookieIndex)

Default Value

""

Remarks

This is the domain of a received cookie. This property contains a domain name to limit the cookie to (if provided by the server). If the server does not provide a domain name, this property will contain an empty string. The convention in this case is to use the server name specified by URLServer as the cookie domain.

The CookieIndex parameter specifies the index of the item in the array. The size of the array is controlled by the CookieCount property.

This property is read-only and not available at design time.

Data Type

String

CookieExpiration Property (OData Control)

This property contains an expiration time for the cookie (if provided by the server).

Syntax

odatacontrol.CookieExpiration(CookieIndex)

Default Value

""

Remarks

This property contains an expiration time for the cookie (if provided by the server). The time format used is "Weekday, DD-Mon-YY HH:MM:SS GMT". If the server does not provide an expiration time, this property will contain an empty string. The convention is to drop the cookie at the end of the session.

The CookieIndex parameter specifies the index of the item in the array. The size of the array is controlled by the CookieCount property.

This property is read-only and not available at design time.

Data Type

String

CookieName Property (OData Control)

This property, contains the name of the cookie.

Syntax

odatacontrol.CookieName(CookieIndex)[=string]

Default Value

""

Remarks

This property, contains the name of the cookie.

This property, along with CookieValue, stores the cookie that is to be sent to the server. The SetCookie event displays the cookies sent by the server and their properties.

The CookieIndex parameter specifies the index of the item in the array. The size of the array is controlled by the CookieCount property.

This property is not available at design time.

Data Type

String

CookiePath Property (OData Control)

This property contains a path name to limit the cookie to (if provided by the server).

Syntax

odatacontrol.CookiePath(CookieIndex)

Default Value

""

Remarks

This property contains a path name to limit the cookie to (if provided by the server). If the server does not provide a cookie path, the path property will be an empty string. The convention in this case is to use the path specified by URLPath as the cookie path.

The CookieIndex parameter specifies the index of the item in the array. The size of the array is controlled by the CookieCount property.

This property is read-only and not available at design time.

Data Type

String

CookieSecure Property (OData Control)

This property contains the security flag of the received cookie.

Syntax

odatacontrol.CookieSecure(CookieIndex)

Default Value

False

Remarks

This property contains the security flag of the received cookie. This property specifies whether the cookie is secure. If the value of this property is True, the cookie value must be submitted only through a secure (HTTPS) connection.

The CookieIndex parameter specifies the index of the item in the array. The size of the array is controlled by the CookieCount property.

This property is read-only and not available at design time.

Data Type

Boolean

CookieValue Property (OData Control)

This property contains the value of the cookie.

Syntax

odatacontrol.CookieValue(CookieIndex)[=string]

Default Value

""

Remarks

This property contains the value of the cookie. A corresponding value is associated with the cookie specified by CookieName. This property holds that value.

The SetCookie event provides the cookies set by the server.

The CookieIndex parameter specifies the index of the item in the array. The size of the array is controlled by the CookieCount property.

This property is not available at design time.

Data Type

String

EntryAuthor Property (OData Control)

This property includes the author of the current entry in an OData feed.

Syntax

odatacontrol.EntryAuthor[=string]

Default Value

""

Remarks

This property contains the author of the specified entry within an OData feed. This value will be populated once EntryIndex is set (provided that an author can be found).

This property is not applicable to OData V4 feeds.

This property is not available at design time.

Data Type

String

EntryCount Property (OData Control)

This property includes the number of entries contained within an OData feed.

Syntax

odatacontrol.EntryCount

Default Value

0

Remarks

This property is updated to reflect the total number of entries returned within a response (whether you are retrieving a feed/entry or making changes to a feed/entry).

This property is read-only and not available at design time.

Data Type

Integer

EntryETag Property (OData Control)

This property includes the ETag of the current entry in an OData feed.

Syntax

odatacontrol.EntryETag[=string]

Default Value

""

Remarks

This property is used to obtain the ETag of the specified entry within an OData feed and will be populated once the EntryIndex is set.

This property is also used when retrieving, updating, or deleting an entry. When EntryETag contains a nonempty string, an If-None-Match header will be sent with the entered value when QueryService is called. When DeleteEntry or UpdateEntry is called, an If-Match header will be sent with the entered value.

This property is not available at design time.

Data Type

String

EntryId Property (OData Control)

This property includes the Id of the current entry in an OData feed.

Syntax

odatacontrol.EntryId[=string]

Default Value

""

Remarks

This property contains the Id of the specified entry within an OData feed. This value will be populated once EntryIndex is set (provided that an Id can be found).

This property is not available at design time.

Data Type

String

EntryIndex Property (OData Control)

This property includes the index of the current entry in an OData feed.

Syntax

odatacontrol.EntryIndex[=integer]

Default Value

-1

Remarks

This property is used to specify an entry within a retrieved OData feed. Once set, EntryAuthor, EntryETag, EntryTitle, EntrySummary, EntryUpdated, EntryLinks, EntryProperties, and ResourcePath will be populated with their respective values found within the entry.

This property takes index values from 0 to EntryCount -1.

Setting EntryIndex to -1 will clear the entries contained by the component and also will reset EntryProperties and EntryCount.

This property is not available at design time.

Data Type

Integer

EntryLinksCount Property (OData Control)

The number of records in the EntryLinks arrays.

Syntax

odatacontrol.EntryLinksCount[=integer]

Default Value

0

Remarks

This property controls the size of the following arrays:

• EntryLinksResourcePath
• EntryLinksTitle

The array indices start at 0 and end at EntryLinksCount - 1.

This property is not available at design time.

Data Type

Integer

EntryLinksResourcePath Property (OData Control)

This property contains the resource path of the OData entry element link.

Syntax

odatacontrol.EntryLinksResourcePath(EntryLinksIndex)

Default Value

""

Remarks

This property contains the resource path of the OData entry element link.

By setting this value to ResourcePath and calling QueryService, you can retrieve the related entries of the current entry (as specified by EntryIndex).

The EntryLinksIndex parameter specifies the index of the item in the array. The size of the array is controlled by the EntryLinksCount property.

This property is read-only and not available at design time.

Data Type

String

EntryLinksTitle Property (OData Control)

This property contains the title of the OData entry element link.

Syntax

odatacontrol.EntryLinksTitle(EntryLinksIndex)

Default Value

""

Remarks

This property contains the title of the OData entry element link.

The EntryLinksIndex parameter specifies the index of the item in the array. The size of the array is controlled by the EntryLinksCount property.

This property is read-only and not available at design time.

Data Type

String

EntryPropertiesCount Property (OData Control)

The number of records in the EntryProperties arrays.

Syntax

odatacontrol.EntryPropertiesCount[=integer]

Default Value

0

Remarks

This property controls the size of the following arrays:

• EntryPropertiesAttributes
• EntryPropertiesIsNull
• EntryPropertiesName
• EntryPropertiesType
• EntryPropertiesValue
• EntryPropertiesXPath

The array indices start at 0 and end at EntryPropertiesCount - 1.

This property is not available at design time.

Data Type

Integer

EntryPropertiesAttributes Property (OData Control)

This property contains a space-separated list of attributes (name-value pairs) contained within an OData entry element.

Syntax

odatacontrol.EntryPropertiesAttributes(EntryPropertiesIndex)[=string]

Default Value

""

Remarks

This property contains a space-separated list of attributes (name-value pairs) contained within an OData entry element. Such as name1="value1" name2="value2".

The EntryPropertiesIndex parameter specifies the index of the item in the array. The size of the array is controlled by the EntryPropertiesCount property.

This property is not available at design time.

Data Type

String

EntryPropertiesIsNull Property (OData Control)

This property indicates whether a property value of a primitive type is null.

Syntax

odatacontrol.EntryPropertiesIsNull(EntryPropertiesIndex)[=boolean]

Default Value

False

Remarks

This property indicates whether a property value of a primitive type is null.

The EntryPropertiesIndex parameter specifies the index of the item in the array. The size of the array is controlled by the EntryPropertiesCount property.

This property is not available at design time.

Data Type

Boolean

EntryPropertiesName Property (OData Control)

This property contains the name of the OData entry element.

Syntax

odatacontrol.EntryPropertiesName(EntryPropertiesIndex)[=string]

Default Value

""

Remarks

This property contains the name of the OData entry element.

Note: For properties derived from a complex type, the name of the property and its subproperty will be separated by a slash (/). For example, let's say you have a property called MailingAddress that is derived from a complex type called Address. The Address complex type contains a property called City. This particular property will be returned as MailingAddress/City.

Setting this property to an empty string before calling UpdateEntry will result in the item not being sent in the update request, thus removing it from the OData entry.

The EntryPropertiesIndex parameter specifies the index of the item in the array. The size of the array is controlled by the EntryPropertiesCount property.

This property is not available at design time.

Data Type

String

EntryPropertiesType Property (OData Control)

This property contains the type of the OData schema property.

Syntax

odatacontrol.EntryPropertiesType(EntryPropertiesIndex)[=string]

Default Value

""

Remarks

This property contains the type of the OData schema property.

The EntryPropertiesIndex parameter specifies the index of the item in the array. The size of the array is controlled by the EntryPropertiesCount property.

This property is not available at design time.

Data Type

String

EntryPropertiesValue Property (OData Control)

This property contains the value of the OData entry element.

Syntax

odatacontrol.EntryPropertiesValue(EntryPropertiesIndex)[=string]

Default Value

""

Remarks

This property contains the value of the OData entry element.

The EntryPropertiesIndex parameter specifies the index of the item in the array. The size of the array is controlled by the EntryPropertiesCount property.

This property is not available at design time.

Data Type

String

EntryPropertiesXPath Property (OData Control)

This property contains the XPath of the OData entry property.

Syntax

odatacontrol.EntryPropertiesXPath(EntryPropertiesIndex)

Default Value

""

Remarks

This property contains the XPath of the OData entry property. This value can be used to set XPath or can be used within UpdateProperty to update a specific property.

The EntryPropertiesIndex parameter specifies the index of the item in the array. The size of the array is controlled by the EntryPropertiesCount property.

This property is read-only and not available at design time.

Data Type

String

EntrySummary Property (OData Control)

This property includes a summary of the current entry in an OData feed.

Syntax

odatacontrol.EntrySummary[=string]

Default Value

""

Remarks

This property contains the summary of a specified entry within an OData feed. This value will be populated once EntryIndex is set (provided that a summary can be found).

This property is not applicable to OData V4 feeds.

This property is not available at design time.

Data Type

String

EntryTitle Property (OData Control)

This property includes the title of the current entry in an OData feed.

Syntax

odatacontrol.EntryTitle[=string]

Default Value

""

Remarks

This property contains the title of a specified entry within an OData feed. This value will be populated once EntryIndex is set (provided that a title can be found).

This property is not available at design time.

Data Type

String

EntryType Property (OData Control)

This property includes the entry category or type.

Syntax

odatacontrol.EntryType[=string]

Default Value

""

Remarks

This property specifies the entry category or type. When communicating with a service using OData V3, this property specifies the category element. When communicating with a service using OData V4, this property specifies the type attribute.

This property is not available at design time.

Data Type

String

EntryUpdated Property (OData Control)

This property includes the date-time when a current entry in an OData feed was updated.

Syntax

odatacontrol.EntryUpdated

Default Value

""

Remarks

This property contains the date-time when a specified entry within an OData feed was updated. This value will be populated once EntryIndex is set (provided that a data-time can be found).

This property is not applicable to OData V4 feeds.

This property is read-only.

Data Type

String

EntryXML Property (OData Control)

This property includes the raw XML of the current entry in an OData feed.

Syntax

odatacontrol.EntryXML[=string]

Default Value

""

Remarks

This property contains the raw XML of a specified entry within an OData feed. This value will be populated once EntryIndex is set.

This property is not available at design time.

Data Type

String

FirewallAutoDetect Property (OData Control)

This property tells the control whether or not to automatically detect and use firewall system settings, if available.

Syntax

odatacontrol.FirewallAutoDetect[=boolean]

Default Value

False

Remarks

This property tells the control whether or not to automatically detect and use firewall system settings, if available.

Data Type

Boolean

FirewallType Property (OData Control)

This property determines the type of firewall to connect through.

Syntax

odatacontrol.FirewallType[=integer]

Possible Values

fwNone(0), 
fwTunnel(1), 
fwSOCKS4(2), 
fwSOCKS5(3), 
fwSOCKS4A(10)

Default Value

0

Remarks

This property determines the type of firewall to connect through. The applicable values are as follows:

Data Type

Integer

FirewallHost Property (OData Control)

This property contains the name or IP address of firewall (optional).

Syntax

odatacontrol.FirewallHost[=string]

Default Value

""

Remarks

This property contains the name or IP address of firewall (optional). If a FirewallHost is given, the requested connections will be authenticated through the specified firewall when connecting.

If this property is set to a Domain Name, a DNS request is initiated. Upon successful termination of the request, this property is set to the corresponding address. If the search is not successful, the control fails with an error.

Data Type

String

FirewallPassword Property (OData Control)

This property contains a password if authentication is to be used when connecting through the firewall.

Syntax

odatacontrol.FirewallPassword[=string]

Default Value

""

Remarks

This property contains a password if authentication is to be used when connecting through the firewall. If FirewallHost is specified, the FirewallUser and FirewallPassword properties are used to connect and authenticate to the given firewall. If the authentication fails, the control fails with an error.

Data Type

String

FirewallPort Property (OData Control)

This property contains the transmission control protocol (TCP) port for the firewall Host .

Syntax

odatacontrol.FirewallPort[=integer]

Default Value

0

Remarks

This property contains the transmission control protocol (TCP) port for the firewall FirewallHost. See the description of the FirewallHost property for details.

Note: This property is set automatically when FirewallType is set to a valid value. See the description of the FirewallType property for details.

Data Type

Integer

FirewallUser Property (OData Control)

This property contains a user name if authentication is to be used connecting through a firewall.

Syntax

odatacontrol.FirewallUser[=string]

Default Value

""

Remarks

This property contains a user name if authentication is to be used connecting through a firewall. If the FirewallHost is specified, this property and FirewallPassword properties are used to connect and authenticate to the given Firewall. If the authentication fails, the control fails with an error.

Data Type

String

Idle Property (OData Control)

The current status of the control.

Syntax

odatacontrol.Idle

Default Value

True

Remarks

Idle will be False if the component is currently busy (communicating and/or waiting for an answer), and True at all other times.

This property is read-only.

Data Type

Boolean

LocalHost Property (OData Control)

The name of the local host or user-assigned IP interface through which connections are initiated or accepted.

Syntax

odatacontrol.LocalHost[=string]

Default Value

""

Remarks

The LocalHost property contains the name of the local host as obtained by the gethostname() system call, or if the user has assigned an IP address, the value of that address.

In multi-homed hosts (machines with more than one IP interface) setting LocalHost to the value of an interface will make the control initiate connections (or accept in the case of server controls) only through that interface.

If the control is connected, the LocalHost property shows the IP address of the interface through which the connection is made in internet dotted format (aaa.bbb.ccc.ddd). In most cases, this is the address of the local host, except for multi-homed hosts (machines with more than one IP interface).

NOTE: LocalHost is not persistent. You must always set it in code, and never in the property window.

Data Type

String

ODataVersion Property (OData Control)

This property includes the OData version.

Syntax

odatacontrol.ODataVersion[=integer]

Possible Values

odV2(0), 
odV3(1), 
odV4(2), 
odAuto(3)

Default Value

3

Remarks

This property specifies the OData version to be used in the request and expected in the response. Possible values are as follows:

• 0 (odV2)
• 1 (odv3)
• 3 (odV4)
• 4 (odAuto - default)

Once the version of the service has been automatically determined, it will continue to be used until Reset is called.

This property is not available at design time.

Data Type

Integer

OtherHeaders Property (OData Control)

This property includes other headers as determined by the user (optional).

Syntax

odatacontrol.OtherHeaders[=string]

Default Value

""

Remarks

This property can be set to a string of headers to be appended to the HTTP request headers created from other properties like ContentType and From.

The headers must follow the format Header: Value as described in the HTTP specifications. Header lines should be separated by CRLF (Chr$(13) & Chr$(10)) .

Use this property with caution. If this property contains invalid headers, HTTP requests may fail.

This property is useful for extending the functionality of the control beyond what is provided.

This property is not available at design time.

Data Type

String

OtherQueryOptions Property (OData Control)

This property includes additional query options to be used when querying a service.

Syntax

odatacontrol.OtherQueryOptions[=string]

Default Value

""

Remarks

This property allows you to specify additional query options that will be used when accessing a service. Query options consist of name-value pairs, and multiple entries should be separated with an "&" (i.e., name1=value1&name2=value2).

Note: All specified values will be appended (unaltered) to the end of the URL (generated by the combination of ServiceRootURI, ResourcePath, and any Query*** properties specified).

This property is not available at design time.

Data Type

String

ParsedHeaderCount Property (OData Control)

The number of records in the ParsedHeader arrays.

Syntax

odatacontrol.ParsedHeaderCount

Default Value

0

Remarks

This property controls the size of the following arrays:

• ParsedHeaderField
• ParsedHeaderValue

The array indices start at 0 and end at ParsedHeaderCount - 1.

This property is read-only and not available at design time.

Data Type

Integer

ParsedHeaderField Property (OData Control)

This property contains the name of the HTTP header (this is the same case as it is delivered).

Syntax

odatacontrol.ParsedHeaderField(ParsedHeaderIndex)

Default Value

""

Remarks

This property contains the name of the HTTP Header (this is the same case as it is delivered).

The ParsedHeaderIndex parameter specifies the index of the item in the array. The size of the array is controlled by the ParsedHeaderCount property.

This property is read-only and not available at design time.

Data Type

String

ParsedHeaderValue Property (OData Control)

This property contains the header contents.

Syntax

odatacontrol.ParsedHeaderValue(ParsedHeaderIndex)

Default Value

""

Remarks

This property contains the Header contents.

The ParsedHeaderIndex parameter specifies the index of the item in the array. The size of the array is controlled by the ParsedHeaderCount property.

This property is read-only and not available at design time.

Data Type

String

Password Property (OData Control)

This property includes a password if authentication is to be used.

Syntax

odatacontrol.Password[=string]

Default Value

""

Remarks

This property contains a password if authentication is to be used. If AuthScheme is set to HTTP Basic Authentication, the User and Password are Base64 encoded and the result is put in the Authorization configuration setting in the form "Basic [encoded-user-password]".

If AuthScheme is set to HTTP Digest Authentication, the User and Password properties are used to respond to the HTTP Digest Authentication challenge from the server.

If AuthScheme is set to NTLM, NTLM authentication will be attempted. If AuthScheme is set to NTLM and User and Password are empty, the control will attempt to authenticate using the current user's credentials.

Data Type

String

ProxyAuthScheme Property (OData Control)

This property is used to tell the control which type of authorization to perform when connecting to the proxy.

Syntax

odatacontrol.ProxyAuthScheme[=integer]

Possible Values

authBasic(0), 
authDigest(1), 
authProprietary(2), 
authNone(3), 
authNtlm(4), 
authNegotiate(5)

Default Value

0

Remarks

This property is used to tell the control which type of authorization to perform when connecting to the proxy. This is used only when the ProxyUser and ProxyPassword properties are set.

ProxyAuthScheme should be set to authNone (3) when no authentication is expected.

By default, ProxyAuthScheme is authBasic (0), and if the ProxyUser and ProxyPassword properties are set, the component will attempt basic authentication.

If ProxyAuthScheme is set to authDigest (1), digest authentication will be attempted instead.

If ProxyAuthScheme is set to authProprietary (2), then the authorization token will not be generated by the control. Look at the configuration file for the control being used to find more information about manually setting this token.

If ProxyAuthScheme is set to authNtlm (4), NTLM authentication will be used.

For security reasons, setting this property will clear the values of ProxyUser and ProxyPassword.

Data Type

Integer

ProxyAutoDetect Property (OData Control)

This property tells the control whether or not to automatically detect and use proxy system settings, if available.

Syntax

odatacontrol.ProxyAutoDetect[=boolean]

Default Value

False

Remarks

This property tells the control whether or not to automatically detect and use proxy system settings, if available. The default value is .

Data Type

Boolean

ProxyPassword Property (OData Control)

This property contains a password if authentication is to be used for the proxy.

Syntax

odatacontrol.ProxyPassword[=string]

Default Value

""

Remarks

This property contains a password if authentication is to be used for the proxy.

If ProxyAuthScheme is set to Basic Authentication, the ProxyUser and ProxyPassword are Base64 encoded and the proxy authentication token will be generated in the form Basic [encoded-user-password].

If ProxyAuthScheme is set to Digest Authentication, the ProxyUser and ProxyPassword properties are used to respond to the Digest Authentication challenge from the server.

If ProxyAuthScheme is set to NTLM Authentication, the ProxyUser and ProxyPassword properties are used to authenticate through NTLM negotiation.

Data Type

String

ProxyPort Property (OData Control)

This property contains the Transmission Control Protocol (TCP) port for the proxy Server (default 80).

Syntax

odatacontrol.ProxyPort[=integer]

Default Value

80

Remarks

This property contains the Transmission Control Protocol (TCP) port for the proxy ProxyServer (default 80). See the description of the ProxyServer property for details.

Data Type

Integer

ProxyServer Property (OData Control)

If a proxy Server is given, then the HTTP request is sent to the proxy instead of the server otherwise specified.

Syntax

odatacontrol.ProxyServer[=string]

Default Value

""

Remarks

If a proxy ProxyServer is given, then the HTTP request is sent to the proxy instead of the server otherwise specified.

If the ProxyServer property is set to a domain name, a DNS request is initiated. Upon successful termination of the request, the ProxyServer property is set to the corresponding address. If the search is not successful, an error is returned.

Data Type

String

ProxySSL Property (OData Control)

This property determines when to use a Secure Sockets Layer (SSL) for the connection to the proxy.

Syntax

odatacontrol.ProxySSL[=integer]

Possible Values

psAutomatic(0), 
psAlways(1), 
psNever(2), 
psTunnel(3)

Default Value

0

Remarks

This property determines when to use a Secure Sockets Layer (SSL) for the connection to the proxy. The applicable values are as follows:

Data Type

Integer

ProxyUser Property (OData Control)

This property contains a username if authentication is to be used for the proxy.

Syntax

odatacontrol.ProxyUser[=string]

Default Value

""

Remarks

This property contains a username if authentication is to be used for the proxy.

If ProxyAuthScheme is set to Basic Authentication, the ProxyUser and ProxyPassword properties are Base64 encoded and the proxy authentication token will be generated in the form Basic [encoded-user-password].

If ProxyAuthScheme is set to Digest Authentication, the ProxyUser and ProxyPassword properties are used to respond to the Digest Authentication challenge from the server.

If ProxyAuthScheme is set to NTLM Authentication, the ProxyUser and ProxyPassword properties are used to authenticate through NTLM negotiation.

Data Type

String

QueryFilter Property (OData Control)

This property selects only the entries that satisfy the specified filter (expression).

Syntax

odatacontrol.QueryFilter[=string]

Default Value

""

Remarks

This property allows you to specify a filter (expression) in which only the entries that satisfy it will be returned.

The following operators are supported in the expression language.

Logical Operators

Arithmetic Operators

Grouping Operators

The following functions are supported in the expression language.

String Functions

Date Functions

Math Functions

Type Functions

This property is not available at design time.

Data Type

String

QueryOrderBy Property (OData Control)

This property includes the value used to order entries when querying a service.

Syntax

odatacontrol.QueryOrderBy[=string]

Default Value

""

Remarks

This property allows you to specify a value by which the returned entries will be ordered after a call to QueryService.

Note: You can specify the order by which the entries are sorted (either ascending or descending) by appending asc or desc (respectively) to your OrderBy value. For example, if you want to sort the entries by Rating in descending order you would set QueryOrderBy to Rating desc. If a specific order (asc or desc) is not specified, the entries will be returned in ascending order.

This property is not available at design time.

Data Type

String

QuerySelect Property (OData Control)

This property selects only the specified properties to be returned in an entry when querying a service.

Syntax

odatacontrol.QuerySelect[=string]

Default Value

""

Remarks

This property allows you to specify the specific properties you want returned within an entry when calling QueryService. The specified value should be a comma-separated list of properties (provided you wish to have more than one property returned). For example, if you wish to have only the Name and Price of each item returned you can set QuerySelect to Name,Price.

Note: The specified values can be a property name, navigation property name (EntryLinksTitle), or the "*" character, which returns all the properties for each entry.

This property is not available at design time.

Data Type

String

QuerySkip Property (OData Control)

This property includes the number of entries to skip when querying a service.

Syntax

odatacontrol.QuerySkip[=string]

Default Value

""

Remarks

This property allows you to specify the number of entries to skip (from the top of the list) when calling QueryService. Therefore when this property set, only the remaining entries (starting with entry N+1) will be returned. The specified value should not be a value less than zero.

By default, the service you are querying will sort the entries using a scheme selected by the OData service you are querying. You can, however, use QueryOrderBy to specify how the entries should be sorted before skipping the top N items.

This property can be used in conjunction with QueryOrderBy and QueryTop to select specific entries. For example, if you wanted to select the third and fourth highest rated item you would set QueryOrderBy to Rating desc (to order the items by Rating from highest to lowest), set QuerySkip to 2 (to skip the first and second items), and finally set QueryTop to 2 (to return only the third and fourth items).

This property is not available at design time.

Data Type

String

QuerySkipToken Property (OData Control)

This property includes the token given by an OData server when the last query result collection is too large.

Syntax

odatacontrol.QuerySkipToken[=string]

Default Value

""

Remarks

When a returned result collection is very large, it is not uncommon for the results to be broken up into multiple pages. When this occurs, a Skip Token is returned in the response and the component will populate QuerySkipToken with the returned value. Calling QueryService again will return the next page of results.

This property is not available at design time.

Data Type

String

QueryTop Property (OData Control)

This property selects the first N entries when querying a service.

Syntax

odatacontrol.QueryTop[=string]

Default Value

""

Remarks

This property allows you to specify the number of entries (taken from the top of the list) to be returned when calling QueryService. The specified value should not be a value less than zero.

By default, the service you are querying will sort the entries using a scheme selected by the OData service you are querying. You can, however, use QueryOrderBy to specify how the entries should be sorted before selecting the top N items.

This property is not available at design time.

Data Type

String

ResourcePath Property (OData Control)

This property includes the resource path of an OData service.

Syntax

odatacontrol.ResourcePath[=string]

Default Value

""

Remarks

This property contains the resource path of an OData service and is used in conjunction with ServiceRootURI (ServiceRootURI/ResourcePath) to query feeds and modify entries.

This property will be populated when EntryIndex is set. You can change the value if you wish to send the request to a different resource path.

For example, a valid ResourcePath for the OData sample service is Products.

This property is not available at design time.

Data Type

String

SchemaAssociationContainsTarget Property (OData Control)

This property indicates whether the navigation property contains a target.

Syntax

odatacontrol.SchemaAssociationContainsTarget

Default Value

False

Remarks

This property indicates whether the navigation property contains a target. If True, the navigation property is a containment navigation property.

This property is applicable only to OData Version 4.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

Boolean

SchemaAssociationDescription Property (OData Control)

This property contains the documentation long description of the OData schema association.

Syntax

odatacontrol.SchemaAssociationDescription

Default Value

""

Remarks

This property contains the documentation long description of the OData schema association.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaAssociationFromRole Property (OData Control)

This property contains the name of the starting point of the navigation.

Syntax

odatacontrol.SchemaAssociationFromRole

Default Value

""

Remarks

This property contains the name of the starting point of the navigation.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaAssociationFromRoleDescription Property (OData Control)

This property contains the documentation long description of the OData schema FromRole association endpoint.

Syntax

odatacontrol.SchemaAssociationFromRoleDescription

Default Value

""

Remarks

This property contains the documentation long description of the OData schema FromRole association endpoint.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaAssociationFromRoleEntity Property (OData Control)

This property contains the name of the entity that the FromRole association endpoint maps to.

Syntax

odatacontrol.SchemaAssociationFromRoleEntity

Default Value

""

Remarks

This property contains the name of the entity that the SchemaAssociationFromRole association endpoint maps to.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaAssociationFromRoleMultiplicity Property (OData Control)

This property contains the multiplicity of the FromRole association endpoint.

Syntax

odatacontrol.SchemaAssociationFromRoleMultiplicity

Possible Values

nmZeroOne(0), 
nmOne(1), 
nmMany(2)

Default Value

0

Remarks

This property contains the multiplicity of the SchemaAssociationFromRole association endpoint. This is used along with SchemaAssociationToRoleMultiplicity to determine the cardinality of the relationship (i.e., one-to-one or one-to-many).

The available values are as follows:

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

Integer

SchemaAssociationFromRoleSummary Property (OData Control)

This property contains the documentation summary of the OData schema FromRole association endpoint.

Syntax

odatacontrol.SchemaAssociationFromRoleSummary

Default Value

""

Remarks

This property contains the documentation summary of the OData schema FromRole association endpoint.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaAssociationName Property (OData Control)

This property contains the name of the OData schema navigation property.

Syntax

odatacontrol.SchemaAssociationName

Default Value

""

Remarks

This property contains the name of the OData schema navigation property.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaAssociationNullable Property (OData Control)

This property indicates whether the property defined by the schema can be a null value.

Syntax

odatacontrol.SchemaAssociationNullable

Default Value

True

Remarks

This property indicates whether the property defined by the schema can be a null value. If False, then the object must contain a value.

This property is applicable only to OData Version 4.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

Boolean

SchemaAssociationOnDelete Property (OData Control)

This property contains the delete action to be performed.

Syntax

odatacontrol.SchemaAssociationOnDelete

Possible Values

daNone(0), 
daCascade(1), 
daSetNull(2), 
daSetDefault(3)

Default Value

0

Remarks

This property contains the delete action to be performed.

The possible values are as follows:

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

Integer

SchemaAssociationPartner Property (OData Control)

This property contains the partner value identifying a navigation property (if any).

Syntax

odatacontrol.SchemaAssociationPartner

Default Value

""

Remarks

This property contains the partner value identifying a navigation property (if any).

This property is applicable only to OData Version 4.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaAssociationRefConstraintCount Property (OData Control)

This property contains the number of referential constraints.

Syntax

odatacontrol.SchemaAssociationRefConstraintCount

Default Value

0

Remarks

This property contains the number of referential constraints. To examine the individual referential constraints set SchemaAssociationRefConstraintIndex to a value from 0 to SchemaAssociationRefConstraintCount -1. Example. Referential Contraints: For i = 0 to odata.SchemaAssociation.RefConstraintCount - 1 odata.SchemaAssociation.RefConstraintIndex = i; Console.Write(odata.SchemaAssociation.RefConstraintProperty); Console.Write(odata.SchemaAssociation.RefConstraintReferencedProperty); Next i

This property is applicable only to OData Version 4.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

Integer

SchemaAssociationRefConstraintIndex Property (OData Control)

This property contains the current index of the referential constraint.

Syntax

odatacontrol.SchemaAssociationRefConstraintIndex[=integer]

Default Value

0

Remarks

This property contains the current index of the referential constraint. See SchemaAssociationRefConstraintCount for details.

This property is applicable only to OData Version 4.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is not available at design time.

Data Type

Integer

SchemaAssociationRefConstraintProperty Property (OData Control)

This property contains the property that takes part in the referential constraint.

Syntax

odatacontrol.SchemaAssociationRefConstraintProperty

Default Value

""

Remarks

This property contains the property that takes part in the referential constraint.

This property is applicable only to OData Version 4.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaAssociationRefConstraintReferencedProperty Property (OData Control)

This property contains the corresponding property of the principal entity type.

Syntax

odatacontrol.SchemaAssociationRefConstraintReferencedProperty

Default Value

""

Remarks

This property contains the corresponding property of the principal entity type.

This property is applicable only to OData Version 4.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaAssociationRelationship Property (OData Control)

This property contains the name of the relationship (association) of the navigation property.

Syntax

odatacontrol.SchemaAssociationRelationship

Default Value

""

Remarks

This property contains the name of the relationship (association) of the navigation property.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaAssociationSummary Property (OData Control)

This property contains the documentation summary of the OData schema association.

Syntax

odatacontrol.SchemaAssociationSummary

Default Value

""

Remarks

This property contains the documentation summary of the OData schema association.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaAssociationToRole Property (OData Control)

This property contains the name of the endpoint of the navigation.

Syntax

odatacontrol.SchemaAssociationToRole

Default Value

""

Remarks

This property contains the name of the endpoint of the navigation.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaAssociationToRoleDescription Property (OData Control)

This property contains the documentation long description of the OData schema ToRole association endpoint.

Syntax

odatacontrol.SchemaAssociationToRoleDescription

Default Value

""

Remarks

This property contains the documentation long description of the OData schema ToRole association endpoint.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaAssociationToRoleEntity Property (OData Control)

This property contains the name of the entity that the ToRole association endpoint maps to.

Syntax

odatacontrol.SchemaAssociationToRoleEntity

Default Value

""

Remarks

This property contains the name of the entity that the SchemaAssociationToRole association endpoint maps to.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaAssociationToRoleMultiplicity Property (OData Control)

This property contains the multiplicity of the ToRole association endpoint.

Syntax

odatacontrol.SchemaAssociationToRoleMultiplicity

Possible Values

nmZeroOne(0), 
nmOne(1), 
nmMany(2)

Default Value

0

Remarks

This property contains the multiplicity of the SchemaAssociationToRole association endpoint. This is used along with SchemaAssociationFromRoleMultiplicity to determine the cardinality of the relationship (i.e., one-to-one or one-to-many).

The available values are as follows:

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

Integer

SchemaAssociationToRoleSummary Property (OData Control)

This property contains the documentation summary of the OData schema ToRole association endpoint.

Syntax

odatacontrol.SchemaAssociationToRoleSummary

Default Value

""

Remarks

This property contains the documentation summary of the OData schema ToRole association endpoint.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaAssociationType Property (OData Control)

This property contains the entity type.

Syntax

odatacontrol.SchemaAssociationType

Default Value

""

Remarks

This property contains the entity type.

This property is applicable only to OData Version 4.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaAssociationCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaAssociationCount Property (OData Control)

This property includes the number of navigation properties contained within an OData schema entity.

Syntax

odatacontrol.SchemaAssociationCount

Default Value

0

Remarks

This property is updated to reflect the total number of navigation properties within the schema entity specified by SchemaEntityIndex.

This property is read-only and not available at design time.

Data Type

Integer

SchemaAssociationIndex Property (OData Control)

This property includes the index of the current navigation property in an OData schema entity.

Syntax

odatacontrol.SchemaAssociationIndex[=integer]

Default Value

0

Remarks

This property is used to specify a navigation property within an entity (specified by SchemaEntityIndex). Once set, SchemaAssociation will be populated.

This property is not available at design time.

Data Type

Integer

SchemaEntityDescription Property (OData Control)

This property contains the documentation long description of the OData schema entity.

Syntax

odatacontrol.SchemaEntityDescription

Default Value

""

Remarks

This property contains the documentation long description of the OData schema entity.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaEntityCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaEntityName Property (OData Control)

This property contains the name of the OData schema entity.

Syntax

odatacontrol.SchemaEntityName

Default Value

""

Remarks

This property contains the name of the OData schema entity.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaEntityCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaEntitySummary Property (OData Control)

This property contains the documentation summary of the OData schema entity.

Syntax

odatacontrol.SchemaEntitySummary

Default Value

""

Remarks

This property contains the documentation summary of the OData schema entity.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaEntityCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaEntityCount Property (OData Control)

This property includes the number of entities contained within an OData schema.

Syntax

odatacontrol.SchemaEntityCount

Default Value

0

Remarks

This property is updated to reflect the total number of entities within a schema (retrieved via GetSchema).

This property is read-only and not available at design time.

Data Type

Integer

SchemaEntityIndex Property (OData Control)

This property includes the index of the current entity in an OData schema.

Syntax

odatacontrol.SchemaEntityIndex[=integer]

Default Value

0

Remarks

This property is used to specify an entity within a retrieved OData schema. Once set, SchemaEntity will be populated.

This property is not available at design time.

Data Type

Integer

SchemaKeysCount Property (OData Control)

The number of records in the SchemaKeys array.

Syntax

odatacontrol.SchemaKeysCount

Default Value

0

Remarks

This property is read-only and not available at design time.

Data Type

Integer

SchemaKeys Property (OData Control)

This property includes the keys for a schema entity.

Syntax

odatacontrol.SchemaKeys(SchemaKeysIndex)

Default Value

"0"

Remarks

This property is used to obtain the keys contained within an entity for a service schema and is populated after setting SchemaEntityIndex.

Note: Key values map to a property of the entity, details of which can be retrieved via SchemaProperty.

This property is read-only and not available at design time.

Data Type

String

SchemaPropertyAttributes Property (OData Control)

This property contains a space-separated list of attributes (name-value pairs) contained within an OData property element.

Syntax

odatacontrol.SchemaPropertyAttributes

Default Value

""

Remarks

This property contains a space-separated list of attributes (name-value pairs) contained within an OData property element. Such as name1="value1" name2="value2".

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaPropertyCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaPropertyDescription Property (OData Control)

This property contains the documentation long description of the OData schema property.

Syntax

odatacontrol.SchemaPropertyDescription

Default Value

""

Remarks

This property contains the documentation long description of the OData schema property.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaPropertyCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaPropertyIsComplexType Property (OData Control)

This property indicates whether a property is derived from a complex type.

Syntax

odatacontrol.SchemaPropertyIsComplexType

Default Value

False

Remarks

This property indicates whether a property is derived from a complex type.

When set tp True, SchemaTypeField can be used to navigate the properties contained within the complex type.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaPropertyCount property.

This property is read-only and not available at design time.

Data Type

Boolean

SchemaPropertyName Property (OData Control)

This property contains the Name of the OData schema property.

Syntax

odatacontrol.SchemaPropertyName

Default Value

""

Remarks

This property contains the Name of the OData schema property.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaPropertyCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaPropertyNullable Property (OData Control)

This property indicates whether a property can be null.

Syntax

odatacontrol.SchemaPropertyNullable

Default Value

False

Remarks

This property indicates whether a property can be null.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaPropertyCount property.

This property is read-only and not available at design time.

Data Type

Boolean

SchemaPropertySummary Property (OData Control)

This property contains the documentation summary of the OData schema property.

Syntax

odatacontrol.SchemaPropertySummary

Default Value

""

Remarks

This property contains the documentation summary of the OData schema property.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaPropertyCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaPropertyType Property (OData Control)

This property contains the type of the OData schema property.

Syntax

odatacontrol.SchemaPropertyType

Default Value

""

Remarks

This property contains the type of the OData schema property.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaPropertyCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaPropertyCount Property (OData Control)

This property includes the number of properties contained within an OData schema entity.

Syntax

odatacontrol.SchemaPropertyCount

Default Value

0

Remarks

This property is updated to reflect the total number of properties within the schema entity specified by SchemaEntityIndex.

This property is read-only and not available at design time.

Data Type

Integer

SchemaPropertyIndex Property (OData Control)

This property includes the index of the current property in an OData schema entity.

Syntax

odatacontrol.SchemaPropertyIndex[=integer]

Default Value

0

Remarks

This property is used to specify a property within an entity (specified by SchemaEntityIndex). Once set, SchemaProperty will be populated.

This property is not available at design time.

Data Type

Integer

SchemaTypeFieldAttributes Property (OData Control)

This property contains a space-separated list of attributes (name-value pairs) contained within an OData property element.

Syntax

odatacontrol.SchemaTypeFieldAttributes

Default Value

""

Remarks

This property contains a space-separated list of attributes (name-value pairs) contained within an OData property element. Such as name1="value1" name2="value2".

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaTypeFieldCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaTypeFieldDescription Property (OData Control)

This property contains the documentation long description of the OData schema property.

Syntax

odatacontrol.SchemaTypeFieldDescription

Default Value

""

Remarks

This property contains the documentation long description of the OData schema property.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaTypeFieldCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaTypeFieldIsComplexType Property (OData Control)

This property indicates whether a property is derived from a complex type.

Syntax

odatacontrol.SchemaTypeFieldIsComplexType

Default Value

False

Remarks

This property indicates whether a property is derived from a complex type.

When set tp True, SchemaTypeField can be used to navigate the properties contained within the complex type.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaTypeFieldCount property.

This property is read-only and not available at design time.

Data Type

Boolean

SchemaTypeFieldName Property (OData Control)

This property contains the Name of the OData schema property.

Syntax

odatacontrol.SchemaTypeFieldName

Default Value

""

Remarks

This property contains the Name of the OData schema property.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaTypeFieldCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaTypeFieldNullable Property (OData Control)

This property indicates whether a property can be null.

Syntax

odatacontrol.SchemaTypeFieldNullable

Default Value

False

Remarks

This property indicates whether a property can be null.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaTypeFieldCount property.

This property is read-only and not available at design time.

Data Type

Boolean

SchemaTypeFieldSummary Property (OData Control)

This property contains the documentation summary of the OData schema property.

Syntax

odatacontrol.SchemaTypeFieldSummary

Default Value

""

Remarks

This property contains the documentation summary of the OData schema property.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaTypeFieldCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaTypeFieldType Property (OData Control)

This property contains the type of the OData schema property.

Syntax

odatacontrol.SchemaTypeFieldType

Default Value

""

Remarks

This property contains the type of the OData schema property.

The parameter specifies the index of the item in the array. The size of the array is controlled by the SchemaTypeFieldCount property.

This property is read-only and not available at design time.

Data Type

String

SchemaTypeFieldCount Property (OData Control)

This property includes the number of properties contained within an OData schema complex type.

Syntax

odatacontrol.SchemaTypeFieldCount

Default Value

0

Remarks

This property is updated to reflect the total number of fields (properties) within the schema complex type of a property. This is populated when navigating an entity's properties via SchemaPropertyIndex or by explicitly setting the type via SetSchemaType.

This property is read-only and not available at design time.

Data Type

Integer

SchemaTypeFieldIndex Property (OData Control)

This property includes the index of the current field (property) in an OData schema complex type.

Syntax

odatacontrol.SchemaTypeFieldIndex[=integer]

Default Value

0

Remarks

This property is used to specify a field (property) within a complex type. Once set, SchemaTypeField will be populated.

This property is not available at design time.

Data Type

Integer

ServiceRootURI Property (OData Control)

This property includes the root URI of an OData service.

Syntax

odatacontrol.ServiceRootURI[=string]

Default Value

""

Remarks

This property contains the root URI of an OData service. This value is used in conjunction with ResourcePath (ServiceRootURI/ResourcePath) to query feeds and modify entries.

Example.

The ServiceRootURI of the OData sample service is "http://services.odata.org/OData/OData.svc/".

This property is not available at design time.

Data Type

String

SSLAcceptServerCertEncoded Property (OData Control)

This is the certificate (PEM/Base64 encoded).

Syntax

odatacontrol.SSLAcceptServerCertEncoded[=string]

Default Value

""

Remarks

This is the certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The SSLAcceptServerCertStore and SSLAcceptServerCertSubject properties also may be used to specify a certificate.

When SSLAcceptServerCertEncoded is set, a search is initiated in the current SSLAcceptServerCertStore for the private key of the certificate. If the key is found, SSLAcceptServerCertSubject is updated to reflect the full subject of the selected certificate; otherwise, SSLAcceptServerCertSubject is set to an empty string.

To read or write binary data to the property, a Variant (Byte Array) version is provided in .SSLAcceptServerCertEncodedB.

This property is not available at design time.

Data Type

Binary String

SSLCertEncoded Property (OData Control)

This is the certificate (PEM/Base64 encoded).

Syntax

odatacontrol.SSLCertEncoded[=string]

Default Value

""

Remarks

This is the certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The SSLCertStore and SSLCertSubject properties also may be used to specify a certificate.

When SSLCertEncoded is set, a search is initiated in the current SSLCertStore for the private key of the certificate. If the key is found, SSLCertSubject is updated to reflect the full subject of the selected certificate; otherwise, SSLCertSubject is set to an empty string.

To read or write binary data to the property, a Variant (Byte Array) version is provided in .SSLCertEncodedB.

This property is not available at design time.

Data Type

Binary String

SSLCertStore Property (OData Control)

This is the name of the certificate store for the client certificate.

Syntax

odatacontrol.SSLCertStore[=string]

Default Value

"MY"

Remarks

This is the name of the certificate store for the client certificate.

The SSLCertStoreType property denotes the type of the certificate store specified by SSLCertStore. If the store is password protected, specify the password in SSLCertStorePassword.

SSLCertStore is used in conjunction with the SSLCertSubject property to specify client certificates. If SSLCertStore has a value, and SSLCertSubject or SSLCertEncoded is set, a search for a certificate is initiated. Please see the SSLCertSubject property for details.

Designations of certificate stores are platform dependent.

The following designations are the most common User and Machine certificate stores in Windows:

When the certificate store type is PFXFile, this property must be set to the name of the file. When the type is PFXBlob, the property must be set to the binary contents of a PFX file (i.e., PKCS#12 certificate store).

To read or write binary data to the property, a Variant (Byte Array) version is provided in .SSLCertStoreB.

Data Type

Binary String

SSLCertStorePassword Property (OData Control)

If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.

Syntax

odatacontrol.SSLCertStorePassword[=string]

Default Value

""

Remarks

If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.

Data Type

String

SSLCertStoreType Property (OData Control)

This is the type of certificate store for this certificate.

Syntax

odatacontrol.SSLCertStoreType[=integer]

Possible Values

cstUser(0), 
cstMachine(1), 
cstPFXFile(2), 
cstPFXBlob(3), 
cstJKSFile(4), 
cstJKSBlob(5), 
cstPEMKeyFile(6), 
cstPEMKeyBlob(7), 
cstPublicKeyFile(8), 
cstPublicKeyBlob(9), 
cstSSHPublicKeyBlob(10), 
cstP7BFile(11), 
cstP7BBlob(12), 
cstSSHPublicKeyFile(13), 
cstPPKFile(14), 
cstPPKBlob(15), 
cstXMLFile(16), 
cstXMLBlob(17), 
cstJWKFile(18), 
cstJWKBlob(19), 
cstSecurityKey(20), 
cstBCFKSFile(21), 
cstBCFKSBlob(22), 
cstPKCS11(23), 
cstAuto(99)

Default Value

0

Remarks

This is the type of certificate store for this certificate.

The control supports both public and private keys in a variety of formats. When the cstAuto value is used, the control will automatically determine the type. This property can take one of the following values:

Data Type

Integer

SSLCertSubject Property (OData Control)

This is the subject of the certificate used for client authentication.

Syntax

odatacontrol.SSLCertSubject[=string]

Default Value

""

Remarks

This is the subject of the certificate used for client authentication.

This property must be set after all other certificate properties are set. When this property is set, a search is performed in the current certificate store to locate a certificate with a matching subject.

If a matching certificate is found, the property is set to the full subject of the matching certificate.

If an exact match is not found, the store is searched for subjects containing the value of the property.

If a match is still not found, the property is set to an empty string, and no certificate is selected.

The special value "*" picks a random certificate in the certificate store.

The certificate subject is a comma-separated list of distinguished name fields and values. For instance, "CN=www.server.com, OU=test, C=US, E=support@nsoftware.com". Common fields and their meanings are as follows:

If a field value contains a comma, it must be quoted.

Data Type

String

SSLProvider Property (OData Control)

This specifies the SSL/TLS implementation to use.

Syntax

odatacontrol.SSLProvider[=integer]

Possible Values

sslpAutomatic(0), 
sslpPlatform(1), 
sslpInternal(2)

Default Value

0

Remarks

This property specifies the SSL/TLS implementation to use. In most cases the default value of 0 (Automatic) is recommended and should not be changed. When set to 0 (Automatic) the control will select whether to use the platform implementation or the internal implementation depending on the operating system as well as the TLS version being used.

Possible values are:

In most cases using the default value (Automatic) is recommended. The control will select a provider depending on the current platform.

When Automatic is selected the platform implementation is used by default. When TLS 1.3 is enabled via SSLEnabledProtocols the internal implementation is used.

Data Type

Integer

SSLServerCertEncoded Property (OData Control)

This is the certificate (PEM/Base64 encoded).

Syntax

odatacontrol.SSLServerCertEncoded

Default Value

""

Remarks

This is the certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The SSLServerCertStore and SSLServerCertSubject properties also may be used to specify a certificate.

When SSLServerCertEncoded is set, a search is initiated in the current SSLServerCertStore for the private key of the certificate. If the key is found, SSLServerCertSubject is updated to reflect the full subject of the selected certificate; otherwise, SSLServerCertSubject is set to an empty string.

To read or write binary data to the property, a Variant (Byte Array) version is provided in .SSLServerCertEncodedB.

This property is read-only and not available at design time.

Data Type

Binary String

Timeout Property (OData Control)

A timeout for the control.

Syntax

odatacontrol.Timeout[=integer]

Default Value

60

Remarks

If the Timeout property is set to 0, all operations will run uninterrupted until successful completion or an error condition is encountered.

If Timeout is set to a positive value, the control will wait for the operation to complete before returning control.

The control will use DoEvents to enter an efficient wait loop during any potential waiting period, making sure that all system events are processed immediately as they arrive. This ensures that the host application does not "freeze" and remains responsive.

If Timeout expires, and the operation is not yet complete, the control fails with an error.

Please note that by default, all timeouts are inactivity timeouts, i.e. the timeout period is extended by Timeout seconds when any amount of data is successfully sent or received.

The default value for the Timeout property is 60 seconds.

Data Type

Integer

TransferredData Property (OData Control)

This property includes the contents of the last response from the server.

Syntax

odatacontrol.TransferredData

Default Value

""

Remarks

This property is used to get the data of the last response from the server.

TransferredData will be populated after a successful QueryService or CustomRequest call, provided that LocalFile is not set. If LocalFile is set, the object data will be written to the file specified.

To read or write binary data to the property, a Variant (Byte Array) version is provided in .TransferredDataB.

This property is read-only and not available at design time.

Data Type

Binary String

User Property (OData Control)

This property includes a user name if authentication is to be used.

Syntax

odatacontrol.User[=string]

Default Value

""

Remarks

This property contains a user name if authentication is to be used. If AuthScheme is set to HTTP Basic Authentication, The User and Password are Base64 encoded, and the result is put in the Authorization property in the form "Basic [encoded-user-password]".

If AuthScheme is set to HTTP Digest Authentication, the User and Password properties are used to respond to the HTTP Digest Authentication challenge from the server.

If AuthScheme is set to NTLM, NTLM authentication will be attempted. If AuthScheme is set to NTLM, and User and Password are empty, the control will attempt to authenticate using the current user's credentials.

Data Type

String

Config Method (OData Control)

Sets or retrieves a configuration setting.

Syntax

odatacontrol.Config ConfigurationString

Remarks

Config is a generic method available in every control. It is used to set and retrieve configuration settings for the control.

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the control, access to these internal properties is provided through the Config method.

To set a configuration setting named PROPERTY, you must call Config("PROPERTY=VALUE"), where VALUE is the value of the setting expressed as a string. For boolean values, use the strings "True", "False", "0", "1", "Yes", or "No" (case does not matter).

To read (query) the value of a configuration setting, you must call Config("PROPERTY"). The value will be returned as a string.

CreateEntry Method (OData Control)

This method creates a new entry within the specified OData service resource.

Syntax

odatacontrol.CreateEntry 

Remarks

The component will use the items contained within EntryProperties to create a new entry within the feed service resource by ServiceRootURI and ResourcePath (ServiceRootURI/ResourcePath).

Upon a successful creation, all previous entries contained by the component, before the CreateEntry call, will be cleared and replaced with the response entry data. EntryIndex will then be set to 0 (the first entry within the response), populating the EntryAuthor, EntryETag, EntryTitle, EntrySummary, EntryUpdated, EntryLinks, and EntryProperties properties. OtherHeaders will also be cleared and thus will need to be reset accordingly with each call made.

CustomRequest Method (OData Control)

This method sends a request to the specified URL using the HTTPMethod and PostData provided.

Syntax

odatacontrol.CustomRequest HTTPMethod, URL, PostData

Remarks

This method sends a custom request to the specified URL. The type of request sent is determined by HTTPMethod (e.g., POST) and the data sent are determined by PostData. If a custom request does not require data to be sent, simply set the PostData parameter to an empty string.

Note: All values specified are taken as entered.

OtherHeaders can be used to specify any additional headers you would like to be sent in the custom request.

The search results are delivered in the TransferredData property, as well as through the Transfer event. The response headers can be retrieved through the TransferredHeaders property as well as through the Header event.

The control will then attempt to parse the search results. Upon successfully parsing the response, Channel will be set with their associated feed element values and EntryCount will be populated with the total number of entries contained within the feed. EntryIndex also will be set to 1, thus populating EntryProperties.

DeleteEntry Method (OData Control)

This method deletes an entry within an OData service resource.

Syntax

odatacontrol.DeleteEntry 

Remarks

The component will delete the entry, of an OData service resource, specified by ServiceRootURI and ResourcePath (ServiceRootURI/ResourcePath).

An "If-Match" header will be sent in the delete request with the value contained within EntryETag.

Upon a successful entry deletion, all previous entries contained by the component, before the DeleteEntry call, will be cleared. OtherHeaders also will be cleared and thus will need to be reset accordingly with each call made.

GetEntryProperty Method (OData Control)

This method gets an OData entry property.

Syntax

odatacontrol.GetEntryProperty XPath

Remarks

This method is intended to extend the functionality of the OData control and will retrieve the value of the entry property specified by XPath. XPath is the XPath of the element or attribute according to the following convention: entry[x]/element@attribute. The @attribute part is optional. When EntryIndex is set to an index greater than or equal to zero, a relative path also can be used: property or property@attribute. When a relative path is specified, the value of the specified XPath will be returned for the entry identified by EntryIndex.

entry[x] is the feed's xth entry (or any other root-level child), where the indexer x starts at 1.

property is any child of the property's element, and attribute can be any attribute of that field. If an attribute is not supplied, the GetEntryProperty method will return the text portion of property.

Example 1. Attribute Not Supplied: ODataControl.GetEntryProperty("entry[5]/content/properties/ID") ODataControl.GetEntryProperty("entry[5]/content/properties/ID@type")

Example 2. Relative Path: In the following example, a relative path is used to retrieve properties of the first feed entry: ODataControl.EntryIndex = 1 ODataControl.GetEntryProperty("ID") ODataControl.GetEntryProperty("ID@type") ODataControl.GetEntryProperty("Address/State")

GetSchema Method (OData Control)

This method retrieves the schema for a service.

Syntax

odatacontrol.GetSchema 

Remarks

This method will retrieve the schema (metadata document) of the service specified by ServiceRootURI.

Upon successful retrieval of the schema, set SchemaEntityIndex to retrieve the names of the entities contained within the schema along with their keys, properties, and navigation properties.

Additional details about the schema can be retrieved via XPath.

HasXPath Method (OData Control)

Determines whether a specific element exists in the document.

Syntax

odatacontrol.HasXPath XPath

Remarks

This method determines whether a particular XPath exists within the document. This may be used to check if a path exists before setting it via XPath.

This method returns True if the xpath exists, False if not.

See XPath for details on the XPath syntax.

QueryService Method (OData Control)

This method queries an OData service using the specified parameters.

Syntax

odatacontrol.QueryService 

Remarks

This method queries an OData feed specified by ServiceRootURI and ResourcePath (ServiceRootURI/ResourcePath) using the query options specified in the Query*** properties and OtherQueryOptions. To fetch an OData feed, without performing any filtering, you can leave Query*** and OtherQueryOptions empty and call QueryService.

The query results are delivered in the TransferredData property, as well as through the Transfer event. The response headers can be retrieved through the ParsedHeaders property as well as through the Header event.

The control will attempt to parse the query results. Upon successfully parsing the response, Channel will be set with their associated feed element values and EntryCount will be populated with the total number of entries contained within the feed. EntryIndex will also be set to 1, thus populating EntryAuthor, EntryETag, EntryTitle, EntrySummary, EntryUpdated, EntryLinks, EntryProperties, and ResourcePath.

Reset Method (OData Control)

This method resets all of properties of the control.

Syntax

odatacontrol.Reset 

Remarks

The Reset method resets all properties to the control's default settings. This is an easy way to clear all of the property values before repopulating the OData feed.

SetEntryProperty Method (OData Control)

This method is used to set an OData entry property.

Syntax

odatacontrol.SetEntryProperty XPath, Value

Remarks

This method is intended to extend functionality of the OData control and will set the value of the entry property (specified by XPath) to the specified Value. Therefore, the value of the corresponding property will be updated within EntryProperties.

XPath is the XPath of the element or attribute according to the following convention: entry[x]/element. When EntryIndex is set to an index greater than or equal to zero, a relative path can also be used: property. When a relative path is specified, the control will use the specified EntryIndex along with the property specified to update the EntryProperty value.

entry[x] is the feed's xth entry (or any other root-level child), where the indexer x starts at 1.

property is any child of the property's element.

Example 1. Set Properties: ODataControl.SetEntryProperty("entry[5]/content/properties/Name", "MyNewName") Example 2. Retrieve Properties:

The following example uses a relative path to retrieve properties of the first feed entry: ODataControl.EntryIndex = 1 ODataControl.SetEntryProperty("Name", "MyNewName") ODataControl.SetEntryProperty("Address/State", "NC")

SetSchemaEntity Method (OData Control)

This method sets the schema entity.

Syntax

odatacontrol.SetSchemaEntity Name

Remarks

The control will set the schema entity to the Name specified. Once set, you can view the keys (via SchemaKeys), properties (via SchemaProperty), and navigation properties (via SchemaAssociation) contained within the specified entity.

SetSchemaProperty Method (OData Control)

This method sets the schema property.

Syntax

odatacontrol.SetSchemaProperty Name

Remarks

The control will set the schema property to the Name specified. Once set, you can view the details of the property (via SchemaProperty) along with the complex type details (via SchemaTypeField); provided that the property is derived from the complex type.

SetSchemaType Method (OData Control)

This method sets the schema type.

Syntax

odatacontrol.SetSchemaType Name

Remarks

The control will set the schema type to the Name specified. Once set, you can view the details of the complex type (via SchemaTypeField).

UpdateEntry Method (OData Control)

This method updates an OData entry.

Syntax

odatacontrol.UpdateEntry 

Remarks

The control will update the OData entry specified by ServiceRootURI and ResourcePath (ServiceRootURI/ResourcePath). It also will update the OData entry with the elements specified by EntryProperties.

Upon a successful update, all previous entries contained by the component, before the UpdateEntry call, will be cleared and replaced with the response entry data. EntryIndex will then be set to zero (the first entry within the response), populating the EntryAuthor, EntryETag, EntryTitle, EntrySummary, EntryUpdated, EntryLinks, EntryProperties, and ResourcePath properties. OtherHeaders will also be cleared and thus will need to be reset accordingly with each call made.

UpdateProperty Method (OData Control)

This method updates an OData entry property.

Syntax

odatacontrol.UpdateProperty XPath, Value

Remarks

The control will update the OData entry specified by ServiceRootURI and ResourcePath (ServiceRootURI/ResourcePath). It will update only the single entry property specified by XPath with the specified Value.

Upon a successful update, all previous entries contained by the component, before the UpdateProperty call, will be cleared and replaced with the response entry data. EntryIndex will then be set to zero (the first entry within the response), populating the EntryAuthor, EntryETag, EntryTitle, EntrySummary, EntryUpdated, EntryLinks, EntryProperties, and ResourcePath. OtherHeaders will also be cleared and thus will need to be reset accordingly with each call made.

Connected Event (OData Control)

This event is fired immediately after a connection completes (or fails).

Syntax

Sub odatacontrol_Connected(StatusCode As Integer, Description As String)

Remarks

If the connection is made normally, StatusCode is 0 and Description is "OK".

If the connection fails, StatusCode has the error code returned by the Transmission Control Protocol (TCP)/IP stack. Description contains a description of this code. The value of StatusCode is equal to the value of the error. The corresponding Visual Basic error code can be obtained by adding 15001 to this value.

Please refer to the Error Codes section for more information.

Disconnected Event (OData Control)

This event is fired when a connection is closed.

Syntax

Sub odatacontrol_Disconnected(StatusCode As Integer, Description As String)

Remarks

If the connection is broken normally, StatusCode is 0 and Description is "OK".

If the connection is broken for any other reason, StatusCode has the error code returned by the Transmission Control Protocol (TCP/IP) subsystem. Description contains a description of this code. The value of StatusCode is equal to the value of the TCP/IP error. The corresponding Visual Basic error code can be obtained by adding 15001 to this value.

Please refer to the Error Codes section for more information.

EndTransfer Event (OData Control)

This event fires when a document finishes transferring.

Syntax

Sub odatacontrol_EndTransfer(Direction As Integer)

Remarks

The EndTransfer event is fired when the document text finishes transferring from the server to the local host.

The Direction parameter shows whether the client (0) or the server (1) is sending the data.

Entity Event (OData Control)

This event is fired once for each entity retrieved.

Syntax

Sub odatacontrol_Entity(Name As String)

Remarks

The Entity event is fired once for each entity found when retrieving a service's schema (metadata document) through GetSchema.

Entry Event (OData Control)

This event is fired once for each entry retrieved.

Syntax

Sub odatacontrol_Entry(Id As String, Title As String, Summary As String, ETag As String)

Remarks

The Entry event is fired once for each entry found in the response.

The entry properties are provided through EntryProperties.

The entry links are provided through EntryLinks.

Error Event (OData Control)

Fired when information is available about errors during data delivery.

Syntax

Sub odatacontrol_Error(ErrorCode As Integer, Description As String)

Remarks

The Error event is fired in case of exceptional conditions during message processing. Normally the control fails with an error.

The ErrorCode parameter contains an error code, and the Description parameter contains a textual description of the error. For a list of valid error codes and their descriptions, please refer to the Error Codes section.

Header Event (OData Control)

This event is fired every time a header line comes in.

Syntax

Sub odatacontrol_Header(Field As String, Value As String)

Remarks

The Field parameter contains the name of the HTTP header (which is the same as it is delivered). The Value parameter contains the header contents.

If the header line being retrieved is a continuation header line, then the Field parameter contains "" (empty string).

Log Event (OData Control)

This event fires once for each log message.

Syntax

Sub odatacontrol_Log(LogLevel As Integer, Message As String, LogType As String)

Remarks

This event fires once for each log message generated by the control. The verbosity is controlled by the LogLevel setting.

LogLevel indicates the level of message. Possible values are as follows:

The value 1 (Info) logs basic information, including the URL, HTTP version, and status details.

The value 2 (Verbose) logs additional information about the request and response.

The value 3 (Debug) logs the headers and body for both the request and response, as well as additional debug information (if any).

Message is the log entry.

LogType identifies the type of log entry. Possible values are as follows:

• "Info"
• "RequestHeaders"
• "ResponseHeaders"
• "RequestBody"
• "ResponseBody"
• "ProxyRequest"
• "ProxyResponse"
• "FirewallRequest"
• "FirewallResponse"

Property Event (OData Control)

This event is fired once for each property found within an entity.

Syntax

Sub odatacontrol_Property(Name As String, TypeName As String, Nullable As Boolean)

Remarks

The Property event is fired once for each property found within an entity after setting SchemaEntityIndex.

SetCookie Event (OData Control)

This event is fired for every cookie set by the server.

Syntax

Sub odatacontrol_SetCookie(Name As String, Value As String, Expires As String, Domain As String, Path As String, Secure As Boolean)

Remarks

The SetCookie event is fired for every Set-Cookie: header received from the HTTP server.

The Name parameter contains the name of the cookie, with the corresponding value supplied in the Value parameter.

The Expires parameter contains an expiration time for the cookie (if provided by the server). The time format used is "Weekday, DD-Mon-YY HH:MM:SS GMT". If the server does not provide an expiration time, the Expires parameter will be an empty string. In this case, the convention is to drop the cookie at the end of the session.

The Domain parameter contains a domain name to limit the cookie to (if provided by the server). If the server does not provide a domain name, the Domain parameter will be an empty string. The convention in this case is to use the server specified in the URL (URLServer) as the cookie domain.

The Path parameter contains a path name to limit the cookie to (if provided by the server). If the server does not provide a cookie path, the Path parameter will be an empty string. The convention in this case is to use the path specified in the URL (URLPath) as the cookie path.

The Secure parameter specifies whether the cookie is secure. If the value of this parameter is True, the cookie value must be submitted only through a secure (HTTPS) connection.

SSLServerAuthentication Event (OData Control)

Fired after the server presents its certificate to the client.

Syntax

Sub odatacontrol_SSLServerAuthentication(CertEncoded As String, CertSubject As String, CertIssuer As String, Status As String, Accept As Boolean)

Remarks

During this event, the client can decide whether or not to continue with the connection process. The Accept parameter is a recommendation on whether to continue or close the connection. This is just a suggestion: application software must use its own logic to determine whether or not to continue.

When Accept is False, Status shows why the verification failed (otherwise, Status contains the string OK). If it is decided to continue, you can override and accept the certificate by setting the Accept parameter to True.

SSLStatus Event (OData Control)

Fired when secure connection progress messages are available.

Syntax

Sub odatacontrol_SSLStatus(Message As String)

Remarks

The event is fired for informational and logging purposes only. This event tracks the progress of the connection.

StartTransfer Event (OData Control)

This event fires when a document starts transferring (after the headers).

Syntax

Sub odatacontrol_StartTransfer(Direction As Integer)

Remarks

The StartTransfer event is fired when the document text starts transferring from the server to the local host.

The Direction parameter shows whether the client (0) or the server (1) is sending the data.

Status Event (OData Control)

This event is fired when the HTTP status line is received from the server.

Syntax

Sub odatacontrol_Status(HTTPVersion As String, StatusCode As Integer, Description As String)

Remarks

HTTPVersion is a string containing the HTTP version string as returned from the server (e.g., "1.1").

StatusCode contains the HTTP status code (e.g., 200), and Description the associated message returned by the server (e.g., "OK").

Transfer Event (OData Control)

This event is fired while a document transfers (delivers document).

Syntax

Sub odatacontrol_Transfer(Direction As Integer, BytesTransferred As Long64, PercentDone As Integer, Text As String)

Remarks

The Text parameter contains the portion of the document text being received. It is empty if data are being posted to the server.

The BytesTransferred parameter contains the number of bytes transferred in this Direction since the beginning of the document text (excluding HTTP response headers).

The Direction parameter shows whether the client (0) or the server (1) is sending the data.

The PercentDone parameter shows the progress of the transfer in the corresponding direction. If PercentDone can not be calculated the value will be -1.

Note: Events are not re-entrant. Performing time-consuming operations within this event will prevent it from firing again in a timely manner and may affect overall performance.

Config Settings (OData Control)

OData Config Settings

HTTP Config Settings

TCPClient Config Settings

SSL Config Settings

-----BEGIN CERTIFICATE-----
MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw
...
eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w
F0I1XhM+pKj7FjDr+XNj
-----END CERTIFICATE-----
\r \n
-----BEGIN CERTIFICATE-----
MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp
..
d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA
-----END CERTIFICATE-----

-----BEGIN CERTIFICATE-----
MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw
...
eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w
F0I1XhM+pKj7FjDr+XNj
-----END CERTIFICATE-----
\r \n
-----BEGIN CERTIFICATE-----
MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp
..
d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA
-----END CERTIFICATE-----

Socket Config Settings

Base Config Settings

Trappable Errors (OData Control)

OData Errors

The control may also return one of the following error codes, which are inherited from other controls.

HTTP Errors

The control may also return one of the following error codes, which are inherited from other controls.

TCPClient Errors

SSL Errors

TCP/IP Errors