Extension Method in C# 2.0

Question

What namespace do I need to get my extension to work

Here is my Extension Method

using System;
using System.Collections.Generic;
using System.Web;
using          


        

Answer 1

Extension methods will not work in C# 2 because they rely on the C# 3 compiler. The C# 3 compiler knows how to do the translation from this:

foo.Bar()

to this:

ExtensionClass.Bar(foo)