A Silverlight Resizable TextBlock (and other resizable things)

In this blog post I present a simple attached behaviour that uses a Thumb control within a Popup to adorn any UI element so that the user can re-size it. A simple feature that has become quite popular on the web is to attache a small handle to text areas so that the user can resize them, this is useful if a user wants to add a large piece of text to a small comment form for example. Interestingly