.NET3.0: Extension method sample

Needed a sample of extension methods both in c# and VB.NET

//Extending class String:
namespace ExtensionMethods
    public static class MyExtensions
        public static int WordCount(this String str)
            return str.Split(new char[] { ' ', '.', '?' }, StringSplitOptions.RemoveEmptyEntries).Length;

using ExtensionMethods;
string s = "Hello Extension Methods";
int i = s.WordCount();


'Extending class String:
' Declarations will typically be in a separate module.
Imports System.Runtime.CompilerServices

Module StringExtensions
    Public Sub PrintAndPunctuate(ByVal aString As String,
                                 ByVal punc As String)
        Console.WriteLine(aString & punc)
    End Sub

End Module
' Import the module that holds the extension method you want to use,
' and call it.

Imports ConsoleApplication2.StringExtensions

Module Module1

    Sub Main()
        Dim example = "Hello"
    End Sub

End Module


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