Visual Studio: Create Add-In That Creates Partial Class in C#

I'd like to have an Add-In in Visual Studio 2008 that will auto-generate some code as a partial class in C# for an existing开发者_StackOverflow class but I don't know where to start.

Any ideas or best practices would be greatly appreciated.

thanks

What exactly do you want your addin to do with the existing class to generate this?

You can do similar things using the Text Template Transformation Toolkit (T4)

You can create an item template to accomplish this.