So, I had a need to implement a TextBox in WPF with auto filtering functionality. For example the initial requests were to limit a TextBox to numeric characters only. This was simple enough. Handle the PreviewTextInput Event and only allow numeric characters...
Found this a while back and to search for it all over again to set up a new IDE. That’s one time too many. How to change your default xaml file editor in Visual Studio and save yourself lots o’ pain. http://weblogs.asp.net/fmarguerie/archive/2009/01/29...