we have one string based setter usage is: entry.setExtensionValue("tagname", "ns", "value") to set the element this will create the extension if it's not there note, you can ofcourse, just get an existing one and work with that object:

Namespace:  Google.GData.Client
Assembly:  Google.GData.Client (in Google.GData.Client.dll)
Version: 1.4.0.2

Syntax

C#
public SimpleElement SetExtensionValue(

	string extension,

	string ns,

	string newValue

)
Visual Basic (Declaration)
Public Function SetExtensionValue ( _

	extension As String, _

	ns As String, _

	newValue As String _

) As SimpleElement
Visual C++
public:

SimpleElement^ SetExtensionValue(

	String^ extension, 

	String^ ns, 

	String^ newValue

)

Parameters

extension
Type: System..::.String
the name of the extension to look for
ns
Type: System..::.String
the namespace of the extension to look for
newValue
Type: System..::.String
the new value for this extension element

Return Value

SimpleElement, either a brand new one, or the one returned by the service

See Also