IPWorks EDI Translator 2022 ActiveX Edition
Version 22.0 [Build 8369]

TRADACOMSReader Control

Properties   Methods   Events   Config Settings   Errors  

The TRADACOMSReader control is optimized for TRADACOMS documents, providing a simple way to parse TRADACOMS documents.

Syntax

TRADACOMSReader

Remarks

The control allows you to parse an incoming EDI document. This control works in two states, loading an entire document at once, or streaming portions of the document. These states are controlled by the BuildDOM property. By default BuildDOM is set to bdEntireDocument which parses the entire document at once, allowing you to use the XPath property to navigate the document.

To save memory for larger documents, you can choose to parse only sections of the document, instead of the entire document. When BuildDOM is set to per interchange (bdInterchange ) or per transaction (bdTransaction), the respective section of the document will be available for use with XPath from within the corresponding Start and End events. Finally, you may choose to set BuildDOM to bdNone, which means no DOM will be built and all data will be available only through events, but also will use very little memory. Below are example steps to parse an entire document:

  1. First, use LoadSchema to load a schema file into the control. (Only necessary when preserving document structure).
  2. Open an EDI document or stream by setting input via InputFile or InputData and calling Parse.
  3. If BuildDOM is set to bdEntireDocument, the events of the control will fire as the document is parsed, and XPath may be set to access any part of the document.

    If bdInterchange or bdTransaction are specified, Parse is called the entire document will be parsed, with only the specified section being saved in memory at any given time. This means if you wish to set XPath to navigate within the section of the document, you will need to do so within the events of the control to prevent further processing of the document while you access the section. When parsing is completely, only the most recently parsed section will be available for use with XPath

    If bdNone is specified, then all document information must be obtained through the events fired during parsing.

During parsing, the control performs basic validation of the incoming document. If validation fails, a warning is generated (fired as an event).

The XPath navigation is done through the XPath property. For example: EDIReader.XPath = "/IX[1]/FG[1]/TX[2]/N1Loop1[1]/N1[1]"; This example path means the following: Select the first N1 segment within the first iteration of the N1Loop1, within second transaction in the first functional group and interchange.

You can also make use of XPath conditional statements to locate the first element which matches a name=value. For example, you could use the following XPath to locate the path of the first element within any N1Loop1 that has a name=N101 and value=BT: EDIReader.XPath = "IX[1]/FG[1]/TX[1]/N1Loop1[N101='BT']";

Note that the conditional statements will search the children, but not the grand children of the element on which the conditional statement is applied. For instance in the above example the children of N1Loop1 will be searched, but the grandchildren will not.

Additionally if the schema loaded is a ArcESB JSON schema the element Id (from the schema) can be used in the conditional statement. For instance instead of N101 the following is also acceptable: EDIReader.XPath = "IX[1]/FG[1]/TX[1]/N1Loop1[98='BT']";

To display the structure of the parsed document use DisplaySchemaInfo. This is helpful when deciding how to navigate the document.

Property List


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

BuildDOMWhen True, an internal object model of the EDI document is created.
EDIStandardVersionThe version of the EDI specification.
ExtraDataExtra data that has not been parsed by the control.
InputDataThe data to parse.
InputFileThe file to parse.
OffsetCurrent offset of the document being parsed.
SchemaFormatThe format of the schema file.
XChildrenNumber of child elements of the current segment.
ElementCountThe number of records in the Element arrays.
ElementComponentCountNumber of controls in the current element.
ElementComponentIndexThe index of the selected control of the current element.
ElementComponentNameThe name of the control selected by ControlIndex , according to the Transaction Set schema.
ElementComponentSchemaDescThe textual description of the control from the loaded ArcESB JSON schema.
ElementComponentSchemaNameThe name of the control as taken from the schema.
ElementComponentTypeThe data type of control selected by ControlIndex , according to the Transaction Set Schema.
ElementComponentValueThe value of the control selected by ControlIndex .
ElementDataTypeThe data type of this EDI element, according to the Transaction Set Schema.
ElementNameThe name of this EDI element, according to the Transaction Set schema.
ElementRepeatCountThe number of times this element is repeated in the in the segment.
ElementRepeatIndexThe index of the selected instance of this repeatable element.
ElementSchemaDescThe textual description of the element from the loaded ArcESB JSON schema.
ElementSchemaNameThe name of the element as taken from the schema.
ElementValueThe value directly associated with this EDI element.
XPathProvides a way to point to a specific segment in the document.
XSegmentThe name of the current segment.
XSegmentNumberThe number of the current segment.
XSegmentTypeIndicates the current segment type.
XTagThe tag of the current segment.
XTransactionCodeThe transaction code of the current segment.

Method List


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

CompileSchemaCompiles an existing XSD schema into an optimized binary representation.
ConfigSets or retrieves a configuration setting.
DisplaySchemaInfoReturns a string showing the structure of the schema defining the document.
DisplayXMLInfoReturns a string showing the structure of the parsed document as XML.
FlushFlushes the parser and checks its end state.
GenerateAckGenerates an EDI acknowledgement.
HasXPathDetermines whether a specific element exists in the document.
LoadSchemaLoads a schema file describing a Transaction Set.
ParseParse the specified input data.
ResetResets the parser.
TryXPathNavigates to the specified XPath if it exists.

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.

EndFunctionalGroupFires whenever a control segment is read that marks the end of an interchange.
EndInterchangeFires whenever a control segment is read that marks the end of an interchange.
EndLoopFires when the end of a loop is detected in a transaction set.
EndTransactionFires whenever a control segment is read that marks the end of a transaction.
ErrorInformation about errors during data delivery.
ResolveSchemaFires whenever a new transaction set is encountered and no schema is found for it.
SegmentFires whenever a data segment in a transaction set is read.
StartFunctionalGroupFires whenever a control segment is read that marks the start of a functional group.
StartInterchangeFires whenever a control segment is read that marks the start of an interchange.
StartLoopFires when the starting of a loop is detected in a transaction set.
StartTransactionFires whenever a control segment is read that marks the start of a transaction.
WarningFires whenever a validation warning is encountered.

Config Settings


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

ComponentDelimiterThe delimiter separating controls.
CrossFieldValidationEnabledEnables cross-field validation rules.
EDIStandardThe document format.
ElementDelimiterThe delimiter character separating data elements.
EncodingThe character encoding to be applied when reading and writing data.
HasXPathDetermines if the specified XPath exists.
ReleaseCharThe character used to escape delimiters within values.
ResolveXPathOnSetDetermines whether or not the XPath is resolved when set.
SegmentDelimiterThe delimiter character separating segments within the EDI document.
StrictSchemaValidationSpecifies the behavior during schema validation.
CodePageThe system code page used for Unicode to Multibyte translations.
UseInternalSecurityAPITells the control whether or not to use the system security libraries or an internal implementation.

BuildDOM Property (TRADACOMSReader Control)

When True, an internal object model of the EDI document is created.

Syntax

tradacomsreadercontrol.BuildDOM[=integer]

Possible Values

bdEntireDocument(0), 
bdInterchange(1), 
bdTransaction(2), 
bdNone(3)

Default Value

0

Remarks

Set BuildDOM to bdEntireDocument (0) when you need to browse the current document through XPath.

Use bdInterchange (1) when parsing large documents to tell the control to only hold an internal object model of the current Interchange being parsed. When this value is used, and a new Interchange is encountered during parsing, the old interchange is cleared from memory. If the input contains a single Interchange, this is equivalent to using bdEntireDocument.

Use bdTransaction (2) when parsing large documents to tell the control to only hold an internal object model of the current transaction being parsed. When this value is used, and a new transaction is encountered during parsing, the old transaction is cleared from memory.

A value of bdNone (3) will tell the control to not save any internal state of the document being parsed, and thus XPath will be unavailable.

Data Type

Integer

EDIStandardVersion Property (TRADACOMSReader Control)

The version of the EDI specification.

Syntax

tradacomsreadercontrol.EDIStandardVersion

Default Value

""

Remarks

This property will be populated after parsing begins and the correct version string for is located via the schema, such as 004010 for X12.

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

Data Type

String

ExtraData Property (TRADACOMSReader Control)

Extra data that has not been parsed by the control.

Syntax

tradacomsreadercontrol.ExtraData

Default Value

""

Remarks

This property will only be populated after the Flush method has been called and data exists in the internal parser which has not been processed.

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

Data Type

String

InputData Property (TRADACOMSReader Control)

The data to parse.

Syntax

tradacomsreadercontrol.InputData[=string]

Default Value

""

Remarks

This property specifies the data to be parsed.

Input Properties

The control will determine the source of the input based on which properties are set.

The order in which the input properties are checked is as follows:

When a valid source is found the search stops.

Data Type

String

InputFile Property (TRADACOMSReader Control)

The file to parse.

Syntax

tradacomsreadercontrol.InputFile[=string]

Default Value

""

Remarks

This property specifies the file to be processed. Set this property to the full or relative path to the file which will be processed.

Input Properties

The control will determine the source of the input based on which properties are set.

The order in which the input properties are checked is as follows:

When a valid source is found the search stops.

This property is not available at design time.

Data Type

String

Offset Property (TRADACOMSReader Control)

Current offset of the document being parsed.

Syntax

tradacomsreadercontrol.Offset

Default Value

0

Remarks

This property is useful for determining the location of possible EDI errors in the document.

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

Data Type

Long64

SchemaFormat Property (TRADACOMSReader Control)

The format of the schema file.

Syntax

tradacomsreadercontrol.SchemaFormat[=integer]

Possible Values

schemaAutomatic(0), 
schemaBinary(1), 
schemaBizTalk(2), 
schemaSEF(3), 
schemaBOTS(4), 
schemaAltova(5), 
schemaJSON(6)

Default Value

0

Remarks

Set SchemaFormat before calling the LoadSchema method to specify the loading schema format.

The following schema formats are supported:

0 (schemaAutomatic - default) The schema type is automatically determined based on file extension.
1 (schemaBinary) A binary schema that was previously compiled by calling CompileSchema.
2 (schemaBizTalk) BizTalk (XSD): http://msdn.microsoft.com/en-us/library/aa559426(v=BTS.70).aspx
3 (schemaSEF) TIBCO Standard Exchange Format (SEF): https://docs.tibco.com/products/tibco-foresight-edisim-6-18-0
5 (schemaAltova) Altova: http://www.altova.com/
6 (schemaJSON - recommended) ArcESB JSON: https://arc.cdata.com/

Data Type

Integer

XChildren Property (TRADACOMSReader Control)

Number of child elements of the current segment.

Syntax

tradacomsreadercontrol.XChildren

Default Value

0

Remarks

This property describes the number of children of the current segment in the parsed document.

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

Data Type

Integer

ElementCount Property (TRADACOMSReader Control)

The number of records in the Element arrays.

Syntax

tradacomsreadercontrol.ElementCount

Default Value

0

Remarks

This property controls the size of the following arrays:

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

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

Data Type

Integer

ElementComponentCount Property (TRADACOMSReader Control)

Number of controls in the current element.

Syntax

tradacomsreadercontrol.ElementComponentCount(ElementIndex)

Default Value

0

Remarks

Number of components in the current element.

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

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

Data Type

Integer

ElementComponentIndex Property (TRADACOMSReader Control)

The index of the selected control of the current element.

Syntax

tradacomsreadercontrol.ElementComponentIndex(ElementIndex)[=integer]

Default Value

1

Remarks

The index of the selected component of the current element. ElementComponentIndex valid values are from 0 to (ElementComponentCount - 1).

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

This property is not available at design time.

Data Type

Integer

ElementComponentName Property (TRADACOMSReader Control)

The name of the control selected by ControlIndex , according to the Transaction Set schema.

Syntax

tradacomsreadercontrol.ElementComponentName(ElementIndex)

Default Value

""

Remarks

The name of the component selected by ElementComponentIndex, according to the Transaction Set schema.

The name is based on the position of the element within the segment. For instance "DTM0101".

See ElementComponentSchemaName for additional details.

Note: This property is only applicable when a ArcESB JSON schema is loaded.

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

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

Data Type

String

ElementComponentSchemaDesc Property (TRADACOMSReader Control)

The textual description of the control from the loaded ArcESB JSON schema.

Syntax

tradacomsreadercontrol.ElementComponentSchemaDesc(ElementIndex)

Default Value

""

Remarks

The textual description of the component from the loaded ArcESB JSON schema.

This property holds a human readable description of the component as obtained from the ArcESB JSON schema.

Note: This property is only applicable when a ArcESB JSON schema is loaded.

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

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

Data Type

String

ElementComponentSchemaName Property (TRADACOMSReader Control)

The name of the control as taken from the schema.

Syntax

tradacomsreadercontrol.ElementComponentSchemaName(ElementIndex)

Default Value

""

Remarks

The name of the component as taken from the schema.

ElementComponentName holds positional (ref) value like "DTM0101". ElementComponentSchemaName holds the Id taken from the schema.

For instance: reader.XPath = "/IX/TX/DTM"; for (int i = 0; i < reader.XElements[0].ComponentCount; i++) { reader.XElements[0].ComponentIndex = i; Console.WriteLine(reader.XElements[i].ComponentSchemaName + ": " + reader.XElements[i].ComponentValue); }

When ElementComponentSchemaName is used this will use the name from the schema and will output values like:

2005: 137
2005: 137
2380: 201612151441

In contrast, if ElementComponentName was used the output would look like:

DTM0101: 137
DTM0101: 137
DTM0102: 201612151441

Note: This property is only applicable when a ArcESB JSON schema is loaded.

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

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

Data Type

String

ElementComponentType Property (TRADACOMSReader Control)

The data type of control selected by ControlIndex , according to the Transaction Set Schema.

Syntax

tradacomsreadercontrol.ElementComponentType(ElementIndex)

Default Value

""

Remarks

The data type of component selected by ElementComponentIndex, according to the Transaction Set Schema.

Possible values are:

ANAlphaNumeric
IDIdentifier; allowed values might be defined by the transaction set schema
NNumeric
RFloating-point number
DTDateTime
TMTime
NoneType is unknown or not provided by the schema
CompositeThis element has multiple components

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

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

Data Type

String

ElementComponentValue Property (TRADACOMSReader Control)

The value of the control selected by ControlIndex .

Syntax

tradacomsreadercontrol.ElementComponentValue(ElementIndex)

Default Value

""

Remarks

The value of the component selected by ElementComponentIndex.

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

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

Data Type

String

ElementDataType Property (TRADACOMSReader Control)

The data type of this EDI element, according to the Transaction Set Schema.

Syntax

tradacomsreadercontrol.ElementDataType(ElementIndex)

Default Value

""

Remarks

The data type of this EDI element, according to the Transaction Set Schema.

Possible values are:

ANAlphaNumeric
IDIdentifier; allowed values might be defined by the transaction set schema
NNumeric
RFloating-point number
DTDateTime
TMTime
NoneType is unknown or not provided by the schema
CompositeThis element has multiple components

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

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

Data Type

String

ElementName Property (TRADACOMSReader Control)

The name of this EDI element, according to the Transaction Set schema.

Syntax

tradacomsreadercontrol.ElementName(ElementIndex)

Default Value

""

Remarks

The name of this EDI element, according to the Transaction Set schema. The name is based on the position of the element within the segment. For instance "N101".

See ElementSchemaName for additional details.

Note: This property is only applicable when a ArcESB JSON schema is loaded.

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

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

Data Type

String

ElementRepeatCount Property (TRADACOMSReader Control)

The number of times this element is repeated in the in the segment.

Syntax

tradacomsreadercontrol.ElementRepeatCount(ElementIndex)

Default Value

1

Remarks

The number of times this element is repeated in the in the segment. If the element is not repeated this will return 0.

To access the repeated element values set ElementRepeatIndex.

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

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

Data Type

Integer

ElementRepeatIndex Property (TRADACOMSReader Control)

The index of the selected instance of this repeatable element.

Syntax

tradacomsreadercontrol.ElementRepeatIndex(ElementIndex)[=integer]

Default Value

1

Remarks

The index of the selected instance of this repeatable element. ElementRepeatIndex valid values are from 0 to (ElementRepeatCount - 1).

Setting ElementRepeatIndex will affect the value reported by all other properties.

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

This property is not available at design time.

Data Type

Integer

ElementSchemaDesc Property (TRADACOMSReader Control)

The textual description of the element from the loaded ArcESB JSON schema.

Syntax

tradacomsreadercontrol.ElementSchemaDesc(ElementIndex)

Default Value

""

Remarks

The textual description of the element from the loaded ArcESB JSON schema.

This property holds a human readable description of the element as obtained from the ArcESB JSON schema.

Note: This property is only applicable when a ArcESB JSON schema is loaded.

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

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

Data Type

String

ElementSchemaName Property (TRADACOMSReader Control)

The name of the element as taken from the schema.

Syntax

tradacomsreadercontrol.ElementSchemaName(ElementIndex)

Default Value

""

Remarks

The name of the element as taken from the schema.

ElementName holds positional (ref) value like "N101". ElementSchemaName holds the Id taken from the schema.

For instance: reader.XPath = "/IX/FG/TX/N1Loop1[1]/N1"; for (int i = 0; i < reader.XElements.Count; i++) { Console.WriteLine(reader.XElements[i].SchemaName + ": " + reader.XElements[i].Value); }

When ElementSchemaName is used this will use the name from the schema and will output values like:

98: ST
93: BUYSNACKS PORT
66: 9
67: 1223334445

In contrast, if ElementName was used the output would look like:

N101: ST
N102: BUYSNACKS PORT
N103: 9
N104: 1223334445

Note: This property is only applicable when a ArcESB JSON schema is loaded.

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

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

Data Type

String

ElementValue Property (TRADACOMSReader Control)

The value directly associated with this EDI element.

Syntax

tradacomsreadercontrol.ElementValue(ElementIndex)

Default Value

""

Remarks

The value directly associated with this EDI element.

Note that this property will be populated with the entire element contents when a composite element exists. The components of the composite element will also be parsed out into the ElementComponentName, ElementComponentType, and ElementComponentValue properties.

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

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

Data Type

String

XPath Property (TRADACOMSReader Control)

Provides a way to point to a specific segment in the document.

Syntax

tradacomsreadercontrol.XPath[=string]

Default Value

""

Remarks

The path is a series of one or more segment accessors separated by '/'. The path can be absolute (starting with '/') or relative to the current XPath location.

The following are possible values for an element accessor:

IXRefers to the Interchange (root) node
FGRefers to a Functional Group node
TXRefers to a Transaction Set node
'name'The first segment or loop of the current container with the given schema name
name[i]The i-th segment of the current container with the given schema-name
[i]The i-th segment of the current container
[last()]The last segment of the current container
[last()-i]The segment located at the last location minus i in the current container
..The parent of the current container

When XPath is set to a valid path, XSegment points to the name of the segment, with XTag, XSegmentType, and XChildren providing other properties of the segment. The elements of the current segment are provided in the XElements properties.

BuildDOM must be set to bdEntireDocument or bdTransaction prior to parsing the document for the XPath functionality to be available.

Example (Setting XPath)

Document root (Interchange)EDIReaderControl.XPath = "/"
N1 segment in the first transactionEDIReaderControl.XPath = "/IX/FG/TX/N1Loop1/N1"
3-th instance of the N2 segmentEDIReaderControl.XPath = "/IX/FG/TX/N1Loop1/N2[3]"

Data Type

String

XSegment Property (TRADACOMSReader Control)

The name of the current segment.

Syntax

tradacomsreadercontrol.XSegment

Default Value

""

Remarks

The name of the current segment according to the schema. The current segment is specified via the XPath property.

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

Data Type

String

XSegmentNumber Property (TRADACOMSReader Control)

The number of the current segment.

Syntax

tradacomsreadercontrol.XSegmentNumber

Default Value

0

Remarks

The number of the current segment according to the schema. The current segment is specified via the XPath property.

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

Data Type

Integer

XSegmentType Property (TRADACOMSReader Control)

Indicates the current segment type.

Syntax

tradacomsreadercontrol.XSegmentType

Possible Values

stNone(0), 
stInterchange(1), 
stFunctionalGroup(2), 
stTransaction(3), 
stInterchangeHeader(4), 
stFunctionalGroupHeader(5), 
stTransactionHeader(6), 
stTransactionSegment(7), 
stTransactionLoop(8), 
stTransactionFooter(9), 
stFunctionalGroupFooter(10), 
stInterchangeFooter(11)

Default Value

0

Remarks

The current segment will be a control segment footer/header or a transaction data segment.

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

Data Type

Integer

XTag Property (TRADACOMSReader Control)

The tag of the current segment.

Syntax

tradacomsreadercontrol.XTag

Default Value

""

Remarks

The current segment is specified via the XPath property.

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

Data Type

String

XTransactionCode Property (TRADACOMSReader Control)

The transaction code of the current segment.

Syntax

tradacomsreadercontrol.XTransactionCode

Default Value

""

Remarks

The current segment is specified via the XPath property.

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

Data Type

String

CompileSchema Method (TRADACOMSReader Control)

Compiles an existing XSD schema into an optimized binary representation.

Syntax

tradacomsreadercontrol.CompileSchema XsdSchema, BinSchema

Remarks

This method parses XsdSchema and generates an optimized binary representation that is saved into the path referenced by BinSchema. Binary schemas are smaller and require less resources when loading later using LoadSchema

If the schema file does not exists or cannot be parsed as an EDI schema, the component throws an exception.

Config Method (TRADACOMSReader Control)

Sets or retrieves a configuration setting.

Syntax

tradacomsreadercontrol.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.

DisplaySchemaInfo Method (TRADACOMSReader Control)

Returns a string showing the structure of the schema defining the document.

Syntax

tradacomsreadercontrol.DisplaySchemaInfo 

Remarks

After calling LoadSchema this may be called to obtain information about the structure of the schema defining the document. If the desired XPath is not known this helps determine the structure so that the correct XPath can be built.

Note: A valid schema must be loaded via LoadSchema.

For instance: Console.WriteLine(component.DisplaySchemaInfo()); Will output text like:

UNH[0,1]
  BGM[0,1]
  DTM[0,35]
  PAI[0,1]
  ALI[0,5]
  IMD[0,1]
  FTX[0,10]
  LOC[0,10]
  GIS[0,10]
  DGS[0,1]
  RFFLoop1[0,99]
    RFF[0,1]
    DTM_2[0,5]
    GIR[0,5]
    LOC_2[0,2]
    MEA[0,5]
    QTY[0,2]
    FTX_2[0,5]
    MOA[0,2]
  NADLoop1[0,99]
    NAD[0,1]
    LOC_3[0,25]
    FII[0,5]
    RFFLoop2[0,9999]
      RFF_2[0,1]
      DTM_3[0,5]
    DOCLoop1[0,5]
      DOC[0,1]
      DTM_4[0,5]
    CTALoop1[0,5]
      CTA[0,1]
      COM[0,5]
  TAXLoop1[0,5]
    TAX[0,1]
    MOA_2[0,1]
    LOC_4[0,5]
  CUXLoop1[0,5]
    CUX[0,1]
    DTM_5[0,5]
  PATLoop1[0,10]
    PAT[0,1]
    DTM_6[0,5]
    PCD[0,1]
    MOA_3[0,1]
    PAI_2[0,1]
    FII_2[0,1]
  TDTLoop1[0,10]
    TDT[0,1]
    TSR[0,1]
    LOCLoop1[0,10]
      LOC_5[0,1]
      DTM_7[0,5]
    RFFLoop3[0,9999]
      RFF_3[0,1]
      DTM_8[0,5]
  TODLoop1[0,5]
    TOD[0,1]
    LOC_6[0,2]
  PACLoop1[0,1000]
    PAC[0,1]
    MEA_2[0,5]
    EQD[0,1]
    PCILoop1[0,5]
      PCI[0,1]
      RFF_4[0,1]
      DTM_9[0,5]
      GIN[0,5]
  ALCLoop1[0,9999]
    ALC[0,1]
    ALI_2[0,5]
    FTX_3[0,1]
    RFFLoop4[0,5]
      RFF_5[0,1]
      DTM_10[0,5]
    QTYLoop1[0,1]
      QTY_2[0,1]
      RNG[0,1]
    PCDLoop1[0,1]
      PCD_2[0,1]
      RNG_2[0,1]
    MOALoop1[0,2]
      MOA_4[0,1]
      RNG_3[0,1]
      CUX_2[0,1]
      DTM_11[0,1]
    RTELoop1[0,1]
      RTE[0,1]
      RNG_4[0,1]
    TAXLoop2[0,5]
      TAX_2[0,1]
      MOA_5[0,1]
  RCSLoop1[0,100]
    RCS[0,1]
    RFF_6[0,5]
    DTM_12[0,5]
    FTX_4[0,5]
  AJTLoop1[0,1]
    AJT[0,1]
    FTX_5[0,5]
  INPLoop1[0,1]
    INP[0,1]
    FTX_6[0,5]
  LINLoop1[0,9999999]
    LIN[0,1]
    PIA[0,25]
    IMD_2[0,10]
    MEA_3[0,5]
    QTY_3[0,5]
    PCD_3[0,1]
    ALI_3[0,5]
    DTM_13[0,35]
    GIN_2[0,1000]
    GIR_2[0,1000]
    QVR[0,1]
    EQD_2[0,1]
    FTX_7[0,5]
    DGS_2[0,1]
    MOALoop2[0,10]
      MOA_6[0,1]
      CUX_3[0,1]
    PATLoop2[0,10]
      PAT_2[0,1]
      DTM_14[0,5]
      PCD_4[0,1]
      MOA_7[0,1]
    PRILoop1[0,25]
      PRI[0,1]
      CUX_4[0,1]
      APR[0,1]
      RNG_5[0,1]
      DTM_15[0,5]
    RFFLoop5[0,10]
      RFF_7[0,1]
      DTM_16[0,5]
    PACLoop2[0,10]
      PAC_2[0,1]
      MEA_4[0,10]
      EQD_3[0,1]
      PCILoop2[0,10]
        PCI_2[0,1]
        RFF_8[0,1]
        DTM_17[0,5]
        GIN_3[0,10]
    LOCLoop2[0,9999]
      LOC_7[0,1]
      QTY_4[0,100]
      DTM_18[0,5]
    TAXLoop3[0,99]
      TAX_3[0,1]
      MOA_8[0,1]
      LOC_8[0,5]
    NADLoop2[0,99]
      NAD_2[0,1]
      LOC_9[0,5]
      RFFLoop6[0,5]
        RFF_9[0,1]
        DTM_19[0,5]
      DOCLoop2[0,5]
        DOC_2[0,1]
        DTM_20[0,5]
      CTALoop2[0,5]
        CTA_2[0,1]
        COM_2[0,5]
    ALCLoop2[0,30]
      ALC_2[0,1]
      ALI_4[0,5]
      DTM_21[0,5]
      FTX_8[0,1]
      QTYLoop2[0,1]
        QTY_5[0,1]
        RNG_6[0,1]
      PCDLoop2[0,1]
        PCD_5[0,1]
        RNG_7[0,1]
      MOALoop3[0,2]
        MOA_9[0,1]
        RNG_8[0,1]
        CUX_5[0,1]
        DTM_22[0,1]
      RTELoop2[0,1]
        RTE_2[0,1]
        RNG_9[0,1]
      TAXLoop4[0,5]
        TAX_4[0,1]
        MOA_10[0,1]
    TDTLoop2[0,10]
      TDT_2[0,1]
      LOCLoop3[0,10]
        LOC_10[0,1]
        DTM_23[0,5]
    TODLoop2[0,5]
      TOD_2[0,1]
      LOC_11[0,2]
    RCSLoop2[0,100]
      RCS_2[0,1]
      RFF_10[0,5]
      DTM_24[0,5]
      FTX_9[0,5]
    GISLoop1[0,10]
      GIS_2[0,1]
      RFF_11[0,1]
      DTM_25[0,5]
      GIR_3[0,5]
      LOC_12[0,2]
      MEA_5[0,5]
      QTY_6[0,2]
      FTX_10[0,5]
      MOA_11[0,2]
  UNS[0,1]
  CNT[0,10]
  MOALoop4[0,100]
    MOA_12[0,1]
    RFFLoop7[0,1]
      RFF_12[0,1]
      DTM_26[0,5]
  TAXLoop5[0,10]
    TAX_5[0,1]
    MOA_13[0,2]
  ALCLoop3[0,15]
    ALC_3[0,1]
    ALI_5[0,1]
    MOA_14[0,2]
    FTX_11[0,1]
  UNT[0,1]

DisplayXMLInfo Method (TRADACOMSReader Control)

Returns a string showing the structure of the parsed document as XML.

Syntax

tradacomsreadercontrol.DisplayXMLInfo 

Remarks

After the EDI document has been parsed this method may be called to obtain information about the document structure. The parsed data is represented as XML when queried. This shows all parsed data and may be useful for testing and debugging purposes. For instance: Console.WriteLine(component.DisplayXMLInfo()); Will output text like:

<IX tag="UNB" UNB1="UNOB:1" UNB2="WAYNE_TECH" UNB3="ACME" UNB4="160707:1547" UNB5="000000002" UNB6="" UNB7="1234" UNB8="" UNB9="" UNB10="" UNB11="1">
  <TX tag="UNH" UNH1="509010117" UNH2="INVOIC:D:97A:UN">
    <BGM tag="BGM" BGM01="380:::TAX INVOICE" BGM02="0013550417" BGM03="9"/>
    <DTM tag="DTM" DTM01="3:20070926:102"/>
    <DTM tag="DTM" DTM01="4:20061123:102"/>
    <FTX tag="FTX" FTX01="AAI" FTX02="1"/>
    <TAXLoop1>
      <TAX tag="TAX" TAX01="7" TAX02="VAT" TAX03="" TAX04="" TAX05=":::10072.14" TAX06="S"/>
    </TAXLoop1>
    <CUXLoop1>
      <CUX tag="CUX" CUX01="2:EUR:4" CUX02="" CUX03="0.67529"/>
    </CUXLoop1>
    <PATLoop1>
      <PAT tag="PAT" PAT01="1"/>
      <DTM_6 tag="DTM" DTM01="10:20070926:102"/>
      <PCD tag="PCD" PCD01="2:0:13"/>
    </PATLoop1>
    <LINLoop1>
      <LIN tag="LIN" LIN01="000030" LIN02=""/>
      <PIA tag="PIA" PIA01="1" PIA02="2265S13:BP::92"/>
      <PIA tag="PIA" PIA01="1" PIA02="5029766832002:UP::92"/>
      <IMD_2 tag="IMD" IMD01="F" IMD02=""/>
      <QTY_3 tag="QTY" QTY01="47:50.000:EA"/>
      <DTM_13 tag="DTM" DTM01="11:20070926:102"/>
      <MOALoop2>
        <MOA_6 tag="MOA" MOA01="203:19150.00"/>
      </MOALoop2>
      <PRILoop1>
        <PRI tag="PRI" PRI01="INV:383.00:TU"/>
      </PRILoop1>
      <TAXLoop3>
        <TAX_3 tag="TAX" TAX01="7" TAX02="VAT" TAX03="" TAX04="" TAX05=":::17.500" TAX06="S"/>
        <MOA_8 tag="MOA" MOA01="125:19150.45"/>
      </TAXLoop3>
      <ALCLoop2>
        <ALC_2 tag="ALC" ALC01="C" ALC02="0.45" ALC03="" ALC04="" ALC05="FC"/>
        <MOALoop3>
          <MOA_9 tag="MOA" MOA01="8:0.45"/>
        </MOALoop3>
      </ALCLoop2>
    </LINLoop1>
    <LINLoop1>
      <LIN tag="LIN" LIN01="000040" LIN02=""/>
      <PIA tag="PIA" PIA01="1" PIA02="2269F22:BP::92"/>
      <PIA tag="PIA" PIA01="1" PIA02="5051254078241:UP::92"/>
      <IMD_2 tag="IMD" IMD01="F" IMD02=""/>
      <QTY_3 tag="QTY" QTY01="47:20.000:EA"/>
      <DTM_13 tag="DTM" DTM01="11:20070926:102"/>
      <MOALoop2>
        <MOA_6 tag="MOA" MOA01="203:21060.00"/>
      </MOALoop2>
      <PRILoop1>
        <PRI tag="PRI" PRI01="INV:1053.00:TU"/>
      </PRILoop1>
      <TAXLoop3>
        <TAX_3 tag="TAX" TAX01="7" TAX02="VAT" TAX03="" TAX04="" TAX05=":::17.500" TAX06="S"/>
        <MOA_8 tag="MOA" MOA01="125:21060.50"/>
      </TAXLoop3>
      <ALCLoop2>
        <ALC_2 tag="ALC" ALC01="C" ALC02="0.50" ALC03="" ALC04="" ALC05="FC"/>
        <MOALoop3>
          <MOA_9 tag="MOA" MOA01="8:0.50"/>
        </MOALoop3>
      </ALCLoop2>
    </LINLoop1>
    <LINLoop1>
      <LIN tag="LIN" LIN01="000170" LIN02=""/>
      <PIA tag="PIA" PIA01="1" PIA02="2269F10:BP::92"/>
      <PIA tag="PIA" PIA01="1" PIA02="5051254078326:UP::92"/>
      <IMD_2 tag="IMD" IMD01="F" IMD02=""/>
      <QTY_3 tag="QTY" QTY01="47:10.000:EA"/>
      <DTM_13 tag="DTM" DTM01="11:20070926:102"/>
      <MOALoop2>
        <MOA_6 tag="MOA" MOA01="203:6950.00"/>
      </MOALoop2>
      <PRILoop1>
        <PRI tag="PRI" PRI01="INV:695.00:TU"/>
      </PRILoop1>
      <TAXLoop3>
        <TAX_3 tag="TAX" TAX01="7" TAX02="VAT" TAX03="" TAX04="" TAX05=":::17.500" TAX06="S"/>
        <MOA_8 tag="MOA" MOA01="125:6950.16"/>
      </TAXLoop3>
      <ALCLoop2>
        <ALC_2 tag="ALC" ALC01="C" ALC02="0.16" ALC03="" ALC04="" ALC05="FC"/>
        <MOALoop3>
          <MOA_9 tag="MOA" MOA01="8:0.16"/>
        </MOALoop3>
      </ALCLoop2>
    </LINLoop1>
    <LINLoop1>
      <LIN tag="LIN" LIN01="000190" LIN02=""/>
      <PIA tag="PIA" PIA01="1" PIA02="2269F26:BP::92"/>
      <PIA tag="PIA" PIA01="1" PIA02="5051254051190:UP::92"/>
      <IMD_2 tag="IMD" IMD01="F" IMD02=""/>
      <QTY_3 tag="QTY" QTY01="47:5.000:EA"/>
      <DTM_13 tag="DTM" DTM01="11:20070926:102"/>
      <MOALoop2>
        <MOA_6 tag="MOA" MOA01="203:2375.00"/>
      </MOALoop2>
      <PRILoop1>
        <PRI tag="PRI" PRI01="INV:475.00:TU"/>
      </PRILoop1>
      <TAXLoop3>
        <TAX_3 tag="TAX" TAX01="7" TAX02="VAT" TAX03="" TAX04="" TAX05=":::17.500" TAX06="S"/>
        <MOA_8 tag="MOA" MOA01="125:2375.06"/>
      </TAXLoop3>
      <ALCLoop2>
        <ALC_2 tag="ALC" ALC01="C" ALC02="0.06" ALC03="" ALC04="" ALC05="FC"/>
        <MOALoop3>
          <MOA_9 tag="MOA" MOA01="8:0.06"/>
        </MOALoop3>
      </ALCLoop2>
    </LINLoop1>
    <LINLoop1>
      <LIN tag="LIN" LIN01="000200" LIN02=""/>
      <PIA tag="PIA" PIA01="1" PIA02="2265S24:BP::92"/>
      <PIA tag="PIA" PIA01="1" PIA02="5029766000685:UP::92"/>
      <IMD_2 tag="IMD" IMD01="F" IMD02=""/>
      <QTY_3 tag="QTY" QTY01="47:3.000:EA"/>
      <DTM_13 tag="DTM" DTM01="11:20070926:102"/>
      <MOALoop2>
        <MOA_6 tag="MOA" MOA01="203:957.00"/>
      </MOALoop2>
      <PRILoop1>
        <PRI tag="PRI" PRI01="INV:319.00:TU"/>
      </PRILoop1>
      <TAXLoop3>
        <TAX_3 tag="TAX" TAX01="7" TAX02="VAT" TAX03="" TAX04="" TAX05=":::17.500" TAX06="S"/>
        <MOA_8 tag="MOA" MOA01="125:957.02"/>
      </TAXLoop3>
      <ALCLoop2>
        <ALC_2 tag="ALC" ALC01="C" ALC02="0.02" ALC03="" ALC04="" ALC05="FC"/>
        <MOALoop3>
          <MOA_9 tag="MOA" MOA01="8:0.02"/>
        </MOALoop3>
      </ALCLoop2>
    </LINLoop1>
    <LINLoop1>
      <LIN tag="LIN" LIN01="000210" LIN02=""/>
      <PIA tag="PIA" PIA01="1" PIA02="2263T95:BP::92"/>
      <PIA tag="PIA" PIA01="1" PIA02="5029766699575:UP::92"/>
      <IMD_2 tag="IMD" IMD01="F" IMD02=""/>
      <QTY_3 tag="QTY" QTY01="47:3.000:EA"/>
      <DTM_13 tag="DTM" DTM01="11:20070926:102"/>
      <MOALoop2>
        <MOA_6 tag="MOA" MOA01="203:2085.00"/>
      </MOALoop2>
      <PRILoop1>
        <PRI tag="PRI" PRI01="INV:695.00:TU"/>
      </PRILoop1>
      <TAXLoop3>
        <TAX_3 tag="TAX" TAX01="7" TAX02="VAT" TAX03="" TAX04="" TAX05=":::17.500" TAX06="S"/>
        <MOA_8 tag="MOA" MOA01="125:2085.05"/>
      </TAXLoop3>
      <ALCLoop2>
        <ALC_2 tag="ALC" ALC01="C" ALC02="0.05" ALC03="" ALC04="" ALC05="FC"/>
        <MOALoop3>
          <MOA_9 tag="MOA" MOA01="8:0.05"/>
        </MOALoop3>
      </ALCLoop2>
    </LINLoop1>
    <LINLoop1>
      <LIN tag="LIN" LIN01="000250" LIN02=""/>
      <PIA tag="PIA" PIA01="1" PIA02="2269F15:BP::92"/>
      <PIA tag="PIA" PIA01="1" PIA02="5051254080091:UP::92"/>
      <IMD_2 tag="IMD" IMD01="F" IMD02=""/>
      <QTY_3 tag="QTY" QTY01="47:3.000:EA"/>
      <DTM_13 tag="DTM" DTM01="11:20070926:102"/>
      <MOALoop2>
        <MOA_6 tag="MOA" MOA01="203:4977.00"/>
      </MOALoop2>
      <PRILoop1>
        <PRI tag="PRI" PRI01="INV:1659.00:TU"/>
      </PRILoop1>
      <TAXLoop3>
        <TAX_3 tag="TAX" TAX01="7" TAX02="VAT" TAX03="" TAX04="" TAX05=":::17.500" TAX06="S"/>
        <MOA_8 tag="MOA" MOA01="125:4977.12"/>
      </TAXLoop3>
      <ALCLoop2>
        <ALC_2 tag="ALC" ALC01="C" ALC02="0.12" ALC03="" ALC04="" ALC05="FC"/>
        <MOALoop3>
          <MOA_9 tag="MOA" MOA01="8:0.12"/>
        </MOALoop3>
      </ALCLoop2>
    </LINLoop1>
    <UNS tag="UNS" UNS01="S"/>
    <CNT tag="CNT" CNT01="4:7"/>
    <MOALoop4>
      <MOA_12 tag="MOA" MOA01="9:67627.50"/>
    </MOALoop4>
    <MOALoop4>
      <MOA_12 tag="MOA" MOA01="79:57554.00"/>
    </MOALoop4>
    <TAXLoop5>
      <TAX_5 tag="TAX" TAX01="7" TAX02="VAT" TAX03="" TAX04="" TAX05=":::17.500" TAX06="S"/>
      <MOA_13 tag="MOA" MOA01="125:57555.36:EUR:3"/>
      <MOA_13 tag="MOA" MOA01="124:10072.14:EUR:3"/>
    </TAXLoop5>
    <ALCLoop3>
      <ALC_3 tag="ALC" ALC01="C" ALC02="1.36" ALC03="" ALC04="" ALC05="FC"/>
      <MOA_14 tag="MOA" MOA01="8:1.36"/>
    </ALCLoop3>
  </TX>
</IX>

Flush Method (TRADACOMSReader Control)

Flushes the parser and checks its end state.

Syntax

tradacomsreadercontrol.Flush 

Remarks

When Flush is called, the parser flushes all its buffers, firing events as necessary, and then checks its end state.

Any extra un-parsed data will be populated in the ExtraData property after this method is called.

GenerateAck Method (TRADACOMSReader Control)

Generates an EDI acknowledgement.

Syntax

tradacomsreadercontrol.GenerateAck 

Remarks

This functionality is not yet implemented and is reserved for future use.

HasXPath Method (TRADACOMSReader Control)

Determines whether a specific element exists in the document.

Syntax

tradacomsreadercontrol.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.

LoadSchema Method (TRADACOMSReader Control)

Loads a schema file describing a Transaction Set.

Syntax

tradacomsreadercontrol.LoadSchema FileName

Remarks

This method parses the File and loads it into an internal schema list. The control will attempt to automatically detect the SchemaFormat.

If the schema file does not exist or cannot be parsed as an EDI schema, the control fails with an error.

Parse Method (TRADACOMSReader Control)

Parse the specified input data.

Syntax

tradacomsreadercontrol.Parse 

Remarks

This method parsed the input data specified by InputFile or InputData.

During parsing the following events may fire:

After Parse returns the document may be traversed by setting the XPath property. The XPath navigation is done through the XPath property. For example: EDIReader.XPath = "/IX[1]/FG[1]/TX[2]/N1Loop1[1]/N1[1]"; This example path means the following: Select the first N1 segment within the first iteration of the N1Loop1, within second transaction in the first functional group and interchange.

You can also make use of XPath conditional statements to locate the first element which matches a name=value. For example, you could use the following XPath to locate the path of the first element within any N1Loop1 that has a name=N101 and value=BT: EDIReader.XPath = "IX[1]/FG[1]/TX[1]/N1Loop1[N101='BT']";

Note that the conditional statements will search the children, but not the grand children of the element on which the conditional statement is applied. For instance in the above example the children of N1Loop1 will be searched, but the grandchildren will not.

Additionally if the schema loaded is a ArcESB JSON schema the element Id (from the schema) can be used in the conditional statement. For instance instead of N101 the following is also acceptable: EDIReader.XPath = "IX[1]/FG[1]/TX[1]/N1Loop1[98='BT']";

Input Properties

The control will determine the source of the input based on which properties are set.

The order in which the input properties are checked is as follows:

When a valid source is found the search stops.

InputData Notes

When setting data to parse via InputData fragments or complete documents may be specified. To parse data in chunks set InputData and call Parse for each fragment.

When the parser is finally reset via the Reset method, all buffered text is flushed out through the ExtraData property.

Since the control can be used to parse EDI data fragments, the internal buffer will not be cleared until Reset is called. If you plan to use this method to parse multiple complete EDI documents be sure to call Reset between calls.

Reset Method (TRADACOMSReader Control)

Resets the parser.

Syntax

tradacomsreadercontrol.Reset 

Remarks

When called, the parser flushes all its buffers, firing events as necessary, and then initializes itself to its default state.

Reset must also be used as signal to the parser that the current stream of text has terminated.

TryXPath Method (TRADACOMSReader Control)

Navigates to the specified XPath if it exists.

Syntax

tradacomsreadercontrol.TryXPath xpath

Remarks

This method will attempt to navigate to the specified XPath parameter if it exists within the document.

If the XPath exists the XPath property will be updated and this method returns True.

If the XPath does not exist the XPath property is not updated and this method returns False.

EndFunctionalGroup Event (TRADACOMSReader Control)

Fires whenever a control segment is read that marks the end of an interchange.

Syntax

Sub tradacomsreadercontrol_EndFunctionalGroup(Tag As String, ControlNumber As String, Count As Integer, FullSegment As String)

Remarks

The EndFunctionalGroup event will fire when a control segment marking the end of a functional group is read. The Tag parameter contains the tag of the segment, such as GE. ControlNumber contains the control number associated with the segment, and links this event with the corresponding StartFunctionalGroup event. Count contains the value of the count element included in the closing segment, which identifies the number of transactions in a functional group.

EndInterchange Event (TRADACOMSReader Control)

Fires whenever a control segment is read that marks the end of an interchange.

Syntax

Sub tradacomsreadercontrol_EndInterchange(Tag As String, ControlNumber As String, FullSegment As String)

Remarks

The EndInterchange event will fire when a control segment marking the end of an interchange is read. The Tag parameter contains the tag of the segment, such as IEA. ControlNumber contains the control number associated with the segment, and links this event with the corresponding StartInterchange event.

EndLoop Event (TRADACOMSReader Control)

Fires when the end of a loop is detected in a transaction set.

Syntax

Sub tradacomsreadercontrol_EndLoop()

Remarks

The EndLoop event will fire after the last segment in a loop is read. Each EndLoop event is paired with one StartLoop event.

EndTransaction Event (TRADACOMSReader Control)

Fires whenever a control segment is read that marks the end of a transaction.

Syntax

Sub tradacomsreadercontrol_EndTransaction(Tag As String, ControlNumber As String, Count As Integer, FullSegment As String)

Remarks

The EndTransaction event will fire when a control segment marking the end of a transaction is read. The Tag parameter contains the tag of the segment, such as SE. ControlNumber contains the control number associated with the segment, and links this event with the corresponding StartTransaction event. Count contains the value of the count element included in the closing segment, which identifies the number of segments in a transaction set.

Error Event (TRADACOMSReader Control)

Information about errors during data delivery.

Syntax

Sub tradacomsreadercontrol_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.

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

ResolveSchema Event (TRADACOMSReader Control)

Fires whenever a new transaction set is encountered and no schema is found for it.

Syntax

Sub tradacomsreadercontrol_ResolveSchema(TransactionCode As String, StandardVersion As String)

Remarks

The ResolveSchema event will fire when a the control encounters the header segment of a new transaction set, but it finds no schema corresponding to it already loaded.

TransactionCode contains the code of the transaction, such as "810" or "APERAK".

StandardVersion contains the version of the transaction, such as "004010" or "D95A".

When processing this event, the caller can use LoadSchema() to load a new schema into the control that can be used to parse the transaction.

After the event fires, if the control still doesn't have a matching schema, then it will attempt schema-less parsing of the transaction set.

Segment Event (TRADACOMSReader Control)

Fires whenever a data segment in a transaction set is read.

Syntax

Sub tradacomsreadercontrol_Segment(Tag As String, Name As String, LoopName As String, FullSegment As String)

Remarks

The Segment event will fire when a data segment is read. The Tag parameter contains the tag of the segment. Name contains the name of the segment as defined in the associated transaction set schema. LoopName contains the name of the loop or group this segment is present in (such as N1Loop1).

StartFunctionalGroup Event (TRADACOMSReader Control)

Fires whenever a control segment is read that marks the start of a functional group.

Syntax

Sub tradacomsreadercontrol_StartFunctionalGroup(Tag As String, ControlNumber As String, FullSegment As String)

Remarks

The StartFunctionalGroup event will fire when a control segment marking the start of a functional group structure is read. The Tag parameter contains the tag of the segment, such as GS. ControlNumber contains the control number associated with the segment.

StartInterchange Event (TRADACOMSReader Control)

Fires whenever a control segment is read that marks the start of an interchange.

Syntax

Sub tradacomsreadercontrol_StartInterchange(Tag As String, ControlNumber As String, FullSegment As String)

Remarks

The StartInterchange event will fire when a control segment marking the start of an interchange structure is read. The Tag parameter contains the tag of the segment, such as ISA. ControlNumber contains the control number associated with the segment.

StartLoop Event (TRADACOMSReader Control)

Fires when the starting of a loop is detected in a transaction set.

Syntax

Sub tradacomsreadercontrol_StartLoop(Name As String)

Remarks

The StartLoop event will fire when the tag of a loop trigger segment is read. The Name parameter contains the schema-provided name of the loop, such as "N1Loop1".

StartTransaction Event (TRADACOMSReader Control)

Fires whenever a control segment is read that marks the start of a transaction.

Syntax

Sub tradacomsreadercontrol_StartTransaction(Tag As String, ControlNumber As String, Code As String, FullSegment As String)

Remarks

The StartTransaction event will fire when a control segment marking the start of a transaction is read. The Tag parameter contains the tag of the segment, such as ST. ControlNumber contains the control number associated with the segment. Code contains the transaction code (such as 810).

Warning Event (TRADACOMSReader Control)

Fires whenever a validation warning is encountered.

Syntax

Sub tradacomsreadercontrol_Warning(WarnCode As Integer, Message As String, SegmentNumber As Integer, SegmentTag As String, TechnicalErrorCode As String, SegmentErrorCode As String, ElementErrorCode As String, ElementPosition As Integer)

Remarks

The Warning event will fire during parsing of a segment of an EDI document. The WarnCode parameter contains the type of warning encountered. Message is a textual description of the problem. SegmentNumber is the index of the segment where the problem was found.

SegmentTag holds the tag name of the segment. SegmentErrorCode holds the error code that may be used in the IK304 field of a 999. ElementErrorCode holds the error code that may be used in the IK403 field of a 999. ElementPosition is the position of the element where the error occurred.

It's very important to note that segment validation happens right in the middle of the parsing process. Because of this, the Warning event will usually fire long before the validated segment becomes the current segment for the parser state. This means you cannot access the parser properties to examine the current segment in relation with the Warning event when the event fires.

Possible WarnCode values are:

0 The component is not required but is present.
1 Invalid segment count.
2 Invalid transaction count.
3 Invalid group count.
4 Invalid interchange control number.
5 Invalid group control number.
6 Invalid transaction control number.
10 A required data element is missing.
11 Invalid field length.
12 Invalid field value.
13 A required component is missing.
14 The data element is not defined but is present.
30 Required segment is missing.
31 Required loop is missing.
32 Occurrences exceeds the schema defined limit.
33 Occurrences is less than the schema defined minimum.
40 Paired rule validation failed, the pair of elements must be present.
41 At least one of element is required, see message for list of elements.
42 Exclusion validation failed, only one of the elements can be present.
43 Conditional rule validation failed.
44 List conditional rule validation failed.
45 First then none validation failed. The presence of an element requires that other specific elements must not be present.
46 Only one or none of the elements can be present.

TechnicalErrorCode holds a technical error code that helps identify structural issues with the document. For instance when parsing an X12 document this will hold values that may be used for TA1 error codes. When parsing X12 documents the following codes are applicable:

001The Interchange Control Numbers in the header ISA 13 and trailer IEA02 do not match.
014Invalid interchange date value (non-numeric characters or wrong length).
015Invalid interchange time value (non-numeric characters or wrong length).
022The ISA segment is missing elements (invalid control structure).
024Invalid interchange content (e.g., Invalid GS segment).

Config Settings (TRADACOMSReader Control)

The control accepts one or more of the following configuration settings. Configuration 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.

TRADACOMSREADER Config Settings

ComponentDelimiter:   The delimiter separating components.

After parsing an EDI document, this configuration option will return the delimiter used to separate components within data elements of the EDI document.

This configuration option may be set in the StartInterchange event to specify the delimiter to be used.

CrossFieldValidationEnabled:   Enables cross-field validation rules.

If true, cross-field validation rules present in the document schema will be checked. The default value is false. Note, Bots Schema Files do not support syntax rules, therefore CrossFieldValidation rules will never execute for these schemas.

EDIStandard:   The document format.

This property specifies standard that the document follows. Possible values are:

  • 1 (EDIFACT - default)
  • 3 (TRADACOMS)

ElementDelimiter:   The delimiter character separating data elements.

After parsing an EDI document, this configuration option will return the delimiter used to separate data elements within segments of the EDI document.

This configuration option may be set in the StartInterchange event to specify the delimiter to be used.

Encoding:   The character encoding to be applied when reading and writing data.

If the data contains non-ASCII characters this setting should be specified so characters are properly preserved. This value should be set to a valid character set such as "UTF-8" or "ISO-8859-1".

HasXPath:   Determines if the specified XPath exists.

This setting can be used to query if an XPath exists before setting XPath. For instance: Console.WriteLine(edireader.Config("HasXPath=IX/FG/TX/IT1Loop1/[2]"));

ReleaseChar:   The character used to escape delimiters within values.

After parsing an EDI document, this configuration option will return the escape character used to escape delimiters within values within the EDI document.

This configuration option may be set in the StartInterchange event to specify the escape character to be used.

ResolveXPathOnSet:   Determines whether or not the XPath is resolved when set.

When true, the control will fully resolve a detailed path when XPath is specified. In this case, the XPath property will contain the XSegment s name as well as the indices when queried after being set.

If this value is set to false, the exact string will be returned when the XPath property is queried from the last time it was set.

For example, the following code will print the string "/[1]/[1]/[1]/[10]" when this value is false, and would print "/IX[1]/FG[1]/TX[1]/IT1Loop1[4]" when this value is true: reader.XPath = "/[1]/[1]/[1]/[10]"; Console.WriteLine(reader.XPath);

In another example, the following code sample will print "IX/FG/TX/IT1Loop1" when false and would print "/IX[1]/FG[1]/TX[1]/IT1Loop1[1]" when true: reader.XPath = "IX/FG/TX/IT1Loop1"; Console.WriteLine(reader.XPath);

This is useful in cases where the full XPath including indices is needed for future processing.

SegmentDelimiter:   The delimiter character separating segments within the EDI document.

After parsing an EDI document, this configuration option will return the delimiter used to separate segments within the EDI document.

This configuration option may be set in the StartInterchange event to specify the delimiter to be used.

StrictSchemaValidation:   Specifies the behavior during schema validation.

This setting specifies what happens when performing schema validation and a validation warning occurs. By default this value is set to 1 (Warn) and the Warning event will fire, but processing will not stop. See the WarnCode parameter list in the Warning event for details about possible validation warnings. Possible values for this setting are:

0 (Ignore) All validation warnings will be ignored. Warning will not fire with warnings.
1 (Warn - default) The Warning event will fire with all validation warnings.
2 (Error) All validation warnings are treated as errors and will cause an exception. Processing will stop immediately.

Base Config Settings

CodePage:   The system code page used for Unicode to Multibyte translations.

The default code page is Unicode UTF-8 (65001).

The following is a list of valid code page identifiers:

IdentifierName
037IBM EBCDIC - U.S./Canada
437OEM - United States
500IBM EBCDIC - International
708Arabic - ASMO 708
709Arabic - ASMO 449+, BCON V4
710Arabic - Transparent Arabic
720Arabic - Transparent ASMO
737OEM - Greek (formerly 437G)
775OEM - Baltic
850OEM - Multilingual Latin I
852OEM - Latin II
855OEM - Cyrillic (primarily Russian)
857OEM - Turkish
858OEM - Multilingual Latin I + Euro symbol
860OEM - Portuguese
861OEM - Icelandic
862OEM - Hebrew
863OEM - Canadian-French
864OEM - Arabic
865OEM - Nordic
866OEM - Russian
869OEM - Modern Greek
870IBM EBCDIC - Multilingual/ROECE (Latin-2)
874ANSI/OEM - Thai (same as 28605, ISO 8859-15)
875IBM EBCDIC - Modern Greek
932ANSI/OEM - Japanese, Shift-JIS
936ANSI/OEM - Simplified Chinese (PRC, Singapore)
949ANSI/OEM - Korean (Unified Hangul Code)
950ANSI/OEM - Traditional Chinese (Taiwan; Hong Kong SAR, PRC)
1026IBM EBCDIC - Turkish (Latin-5)
1047IBM EBCDIC - Latin 1/Open System
1140IBM EBCDIC - U.S./Canada (037 + Euro symbol)
1141IBM EBCDIC - Germany (20273 + Euro symbol)
1142IBM EBCDIC - Denmark/Norway (20277 + Euro symbol)
1143IBM EBCDIC - Finland/Sweden (20278 + Euro symbol)
1144IBM EBCDIC - Italy (20280 + Euro symbol)
1145IBM EBCDIC - Latin America/Spain (20284 + Euro symbol)
1146IBM EBCDIC - United Kingdom (20285 + Euro symbol)
1147IBM EBCDIC - France (20297 + Euro symbol)
1148IBM EBCDIC - International (500 + Euro symbol)
1149IBM EBCDIC - Icelandic (20871 + Euro symbol)
1200Unicode UCS-2 Little-Endian (BMP of ISO 10646)
1201Unicode UCS-2 Big-Endian
1250ANSI - Central European
1251ANSI - Cyrillic
1252ANSI - Latin I
1253ANSI - Greek
1254ANSI - Turkish
1255ANSI - Hebrew
1256ANSI - Arabic
1257ANSI - Baltic
1258ANSI/OEM - Vietnamese
1361Korean (Johab)
10000MAC - Roman
10001MAC - Japanese
10002MAC - Traditional Chinese (Big5)
10003MAC - Korean
10004MAC - Arabic
10005MAC - Hebrew
10006MAC - Greek I
10007MAC - Cyrillic
10008MAC - Simplified Chinese (GB 2312)
10010MAC - Romania
10017MAC - Ukraine
10021MAC - Thai
10029MAC - Latin II
10079MAC - Icelandic
10081MAC - Turkish
10082MAC - Croatia
12000Unicode UCS-4 Little-Endian
12001Unicode UCS-4 Big-Endian
20000CNS - Taiwan
20001TCA - Taiwan
20002Eten - Taiwan
20003IBM5550 - Taiwan
20004TeleText - Taiwan
20005Wang - Taiwan
20105IA5 IRV International Alphabet No. 5 (7-bit)
20106IA5 German (7-bit)
20107IA5 Swedish (7-bit)
20108IA5 Norwegian (7-bit)
20127US-ASCII (7-bit)
20261T.61
20269ISO 6937 Non-Spacing Accent
20273IBM EBCDIC - Germany
20277IBM EBCDIC - Denmark/Norway
20278IBM EBCDIC - Finland/Sweden
20280IBM EBCDIC - Italy
20284IBM EBCDIC - Latin America/Spain
20285IBM EBCDIC - United Kingdom
20290IBM EBCDIC - Japanese Katakana Extended
20297IBM EBCDIC - France
20420IBM EBCDIC - Arabic
20423IBM EBCDIC - Greek
20424IBM EBCDIC - Hebrew
20833IBM EBCDIC - Korean Extended
20838IBM EBCDIC - Thai
20866Russian - KOI8-R
20871IBM EBCDIC - Icelandic
20880IBM EBCDIC - Cyrillic (Russian)
20905IBM EBCDIC - Turkish
20924IBM EBCDIC - Latin-1/Open System (1047 + Euro symbol)
20932JIS X 0208-1990 & 0121-1990
20936Simplified Chinese (GB2312)
21025IBM EBCDIC - Cyrillic (Serbian, Bulgarian)
21027Extended Alpha Lowercase
21866Ukrainian (KOI8-U)
28591ISO 8859-1 Latin I
28592ISO 8859-2 Central Europe
28593ISO 8859-3 Latin 3
28594ISO 8859-4 Baltic
28595ISO 8859-5 Cyrillic
28596ISO 8859-6 Arabic
28597ISO 8859-7 Greek
28598ISO 8859-8 Hebrew
28599ISO 8859-9 Latin 5
28605ISO 8859-15 Latin 9
29001Europa 3
38598ISO 8859-8 Hebrew
50220ISO 2022 Japanese with no halfwidth Katakana
50221ISO 2022 Japanese with halfwidth Katakana
50222ISO 2022 Japanese JIS X 0201-1989
50225ISO 2022 Korean
50227ISO 2022 Simplified Chinese
50229ISO 2022 Traditional Chinese
50930Japanese (Katakana) Extended
50931US/Canada and Japanese
50933Korean Extended and Korean
50935Simplified Chinese Extended and Simplified Chinese
50936Simplified Chinese
50937US/Canada and Traditional Chinese
50939Japanese (Latin) Extended and Japanese
51932EUC - Japanese
51936EUC - Simplified Chinese
51949EUC - Korean
51950EUC - Traditional Chinese
52936HZ-GB2312 Simplified Chinese
54936Windows XP: GB18030 Simplified Chinese (4 Byte)
57002ISCII Devanagari
57003ISCII Bengali
57004ISCII Tamil
57005ISCII Telugu
57006ISCII Assamese
57007ISCII Oriya
57008ISCII Kannada
57009ISCII Malayalam
57010ISCII Gujarati
57011ISCII Punjabi
65000Unicode UTF-7
65001Unicode UTF-8

The following is a list of valid code page identifiers for Mac OS only:

IdentifierName
1ASCII
2NEXTSTEP
3JapaneseEUC
4UTF8
5ISOLatin1
6Symbol
7NonLossyASCII
8ShiftJIS
9ISOLatin2
10Unicode
11WindowsCP1251
12WindowsCP1252
13WindowsCP1253
14WindowsCP1254
15WindowsCP1250
21ISO2022JP
30MacOSRoman
10UTF16String
0x90000100UTF16BigEndian
0x94000100UTF16LittleEndian
0x8c000100UTF32String
0x98000100UTF32BigEndian
0x9c000100UTF32LittleEndian
65536Proprietary

UseInternalSecurityAPI:   Tells the control whether or not to use the system security libraries or an internal implementation.

By default the control will use the system security libraries to perform cryptographic functions where applicable. Setting this to tells the control to use the internal implementation instead of using the system's security API.

Trappable Errors (TRADACOMSReader Control)

TRADACOMSReader Errors

21001    Input/Output error
21002    No stream or file name were specified for the component
21003    Unexpected end of file (EOF).
21004    Segment not found.
21005    Segment not found in schema.
21006    Schema not found.
21011    Invalid Writer state.
21012    Segment does not have the specified element or component.
21013    Invalid XPath.
21014    DOM tree unavailable (set BuildDOM and reparse).
21015    Document contains incomplete segments.
21016    Document contains an open EDI structure (interchange, functional group or transaction) with no matching footer segment.
21045    Error while reading schema file.
21101    Component is busy.
21100    Unexpected error.

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