Hi, Im trying to do a very simple Hello World! application just to learn how to get a String returned from a function in a WCF Service, using Silverlight5 and Visual Studio 2012 in vb.net language.
I found how to do this, but only on C#.
here is my function inside the WCF:
<OperationContract()>
Public Function ReturnHelloString(ByVal number As Integer) As String
If number = 1 Then
Return "Hello World!"
Else
Return "Bye World!"
End If
End Function
and this is how im calling it from my Silverlight application:
Private Sub SayHello()
Dim wcf As New ServicioWCF_BD.ServicioBDClient
Dim message As String = wcf.ReturnStringAsync(1) 'ERROR: THE EXPRESSION DOESNT GENERATE A VALUE
MessageBox.Show("message")
End Sub
I'm getting that error in that line.
I also tried to use a Private Async Sub SayHello() as Task, but visual studio gives me an error, saying maybe im targeting the wrong framework, or missing a reference to some assembly.
I hope you can help me. Thanks!