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).
An hour of confused, weary troubleshooting at 3:36AM is again easily resolved with a fresh mind the next day!
I fixed a simple spelling mistake in the control's filename, so it now matched the UserControl name, cleaned and re-built and Bobs your weird uncle's cat. :]