C# Extension methods in .NET 2.0

Question

I have found several links to methods of making extension methods work in .NET2.0 (The moth, Discord & Rhyme, Stack Overflow). I have also heard vaguely from a colleague

Answer 1

Personally, I would recommend avoiding all three. Each option makes this work by performing a "trick" - I would not rely on this for production code.

If you want to use extension methods, upgrade to C# 3.0. Otherwise, just stick to calling the method using the non-extension method syntax.

You can always take an extension method call like so:

public static class Utility {
    public static string Extension(this string original) { ... }

// call with:
var newString = myString.Extension();

And call it directly:

string newString = Utility.Extension(myString);

This will be more consistent with C#/.NET 2 syntax, and would be my recommendation.