ArcObjects Library Reference (System)

XMLReader CoClass

An XML sequential document reader.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Extended Error Information

Use the ISupportErrorInfo method InterfaceSupportsErrorInfo to determine if the object supports extended error information. If the object supports extended error info, VC++ developers should use the OLE/COM IErrorInfo interface to access the ErrorInfo object. Visual Basic developers should use the global error object Err to retrieve this extended error information.

Interfaces

Interfaces	Description
ISupportErrorInfo (esriSystem)	Indicates whether a specific interface can return Automation error objects.
IXMLReader	Provides access to members that control the sequential reading of XML.
IXMLReader2	Provides access to members that control the sequential reading of XML.

Remarks

Use the XMLReader coclass when you wish to provide access to members that control the sequential reading of XML. XMLStream needs to be hooked-up in order to read the stream.

'*** Create an XML stream and read into it from an XML file

Dim pXMLStream As IXMLStream
Set pXMLStream=New XmlStream

pXMLStream.LoadFromFile "d:\temp\foo.xml"

'*** Create a reader object and point it to the stream

Dim pXMLReader As IXMLReader
Set pXMLReader=New XMLReader

pXMLReader.ReadFrom pXMLStream

'*** Create an XML serializer and use it to deserialize the recordset object from
'*** the stream using the XMLReader

Dim pxmlserial As IXMLSerializer
Dim pRecordSet As IRecordSet

Set pxmlserial=New XMLSerializer
Set pRecordSet=pxmlserial.ReadObject(pXMLReader, Nothing, Nothing)

See the IXMLReader interface for more on getting information about reading of objects.