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

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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)

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You can create an item template to accomplish this.