You should add 'AddressOf ' before your reference to the Create method in the GetData call. So

Dim result = Myextentions.GetData(Of oUserApplication)(oRD, AddressOf oUserApplication.Create)

Or even better:

Dim result = oRD.GetData(Of oUserApplication)(AddressOf oUserApplication.Create)

You know; extension method style. That should work.

Menno