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Nearly a year ago I created a CancellationScope Activity sample and posted it on CodeGallery for .NET 4 Beta 1. I went back yesterday and updated it for .NET 4 RTM – the sample has some interesting points to demonstrate.
It shows how the CancellationScope Activity works but it also shows
You can download the sample from http://code.msdn.microsoft.com/wf4CancellationScope
Read more at Ron Jacobs Blog