' Visual Basic 2008 9.0 .NET Examples - Extension Methods - New in Visual Basic 2008 - 9.0 : 
Public Interface Interface1
End Interface
Public Interface Interface2
End Interface
Public Module InterfaceExtensions
    <System.Runtime.CompilerServices.Extension()> _
    Public Sub Method1(ByVal aInterface1 As Interface1)
        Console.WriteLine("Interface1.Method1")
    End Sub
    <System.Runtime.CompilerServices.Extension()> _
    Public Sub Method2(ByVal aInterface2 As Interface2)
        Console.WriteLine("Interface2.Method2")
    End Sub
End Module
Public Class Class1 : Implements Interface1, Interface2
End Class
Public Class Example4
    Public Shared Sub Main()
        Dim object1 As New Class1
        object1.Method1()
        object1.Method2()
        '
        Console.ReadLine()
    End Sub
End Class
' Visit www.studyvb.com for more examples.  Copyright 2003-2008 De Wolf.