Get resource property values from the server.
The 'callback' parameter specifies a function which will be called when the operation completes (or an error is encountered). If the 'callback' parameter is not specified, then the method will block and will not return until the operation completes (or an error is encountered).
The callback for this method is defined as:
'err' is the error that occurred. If there was no error, then 'err' is 'null'.
'err' has 2 properties which hold detailed information:
FindProperties will request the values for the names at each item provided in the Properties properties. The matching URIs and property values will be returned through one or more ResourceProperties events (one for each matching resource).
If there are no Properties set, then the server will be asked for all the properties of the resource. The properties will be returned via one or more ResourceProperties events.
Depth is used to determine which resources or properties are retrieved from the server. A depth of ResourceOnly will return only the resource associated with ResourceURI, or its properties. A depth of Infinity will return all resources contained within hierarchy, or their collective properties.
Note: Some servers (such as IIS 7.5) may not support a depth of Infinity by default and may return a HTTP 403 Forbidden response.