This is the second part of a series on how to implement a validation plugin using ITeamFoundationRequestFilter.

You can go to the first part by clicking the link below:

https://conradoclarkdeveloper.com/2015/03/02/iteamfoundationrequestfilter-part1-tfs

In this post I’ll explain how to intercept a work item creation request and prevent the operation from executing.

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What’s in the request ?

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After creating a simple plugin using an ITeamFoundationRequestFilter implementation, you are now able to intercept requests to TFS.

I recommend using a software such as Fiddler to capture requests and observe what they’re like. In our case, we’re going to investigate what goes on when we create a WorkItem on Visual Studio and on Web Access. I’ll also be using Fiddler since it’s well known and easy to use. Click here to read more.