Working on VB.net, Webservice I created in the UI Project Now I am running the Application And Accessing the Web service with parameters like HTTP://localhost:3000/TestWebService.asmx/2011 and it is giving an error Can not serialize Interface System.Collections.Generic.IEnumerable, Although Error is also not handled by the Global Exception method.
<WebMethod(EnableSession:=True)>
Public Function GetTest (ByVal P As Integer) As IEnumerable (of Test)
End Function