I am trying out the new vs2010 express edition, wpf form designer (in C# if it matters) and I am having a strange problem adding a User Control onto my main form.
I have created a simple user control, but in the toolbox it is greyed-out and the designer will not allow me to place it on my form.
However the solution builds with no errors, or warnings, and I can even add the User Control to the form programatically and it functions correctly. I can also add the control through the xaml editor if I manualy add my namespace into the
main forms xaml file.
Any ideas what may be causing this strange problem, or how I might be able to fix it?
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