I\'ve created a C# WinForms application using VS2010. I\'m new to creating user controls so I created a new user control (as part of the same project).
When I rebuil
I finally figured this one out.
The project I'm working with uses two class-library assemblies. Although these have nothing to do with the control I'm discussing, I looked and saw both libraries have Platform Target in the Properties|Build tab set to "Any CPU".
On the other hand, my application had this setting set to "x64". By changing my application's setting to "Any CPU", I can now place my user controls onto my forms.
Go figure...