Tool(s) to lower the friction of programming against Interfaces in Visual Studio C#?

I am a relatively new user of Visual Studio and I am trying "program against interfaces". I can see that when I create a class I can "Extract Interface" from the Refactor menu but you seem to only get one shot at this.

ie. If I add a read only property FullName to my Customer class I would like to be able to right click and update the interface. At the moment I can only create a new interface from the Refactor menu. I want to update the interface I have already created not create new one.

So the kind of tool I would be looking for would display check boxes for all valid members of the class with t开发者_开发百科hose already in the interface checked. It would also be handy to be able to to create the initial interface file in a different project (in the same solution), and for the tool to keep track of this.

Does such a tool / add in / menu item exist (other than Ctrl C / V)?

Thanks, John

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CodeRush Xpress is a good free alternative (although limited compared to the full version and ReSharper).

CRX

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ReSharper is your friend John. :)

It has many refactoring tools, including "Pull members up" which will update interfaces in your case:

http://www.jetbrains.com/resharper/

An excellent Visual Studio add-in in many ways...