I use Visual Studio 2012 Ultimate, created a UserControl and everything went fine until I wanted to make some changes to the UserControl class, did a Clean and Rebuild several times, removed my custom control from the Form, added a again, but it is still not reflecting the changes that I have done to the UserControl's class.
The custom control and the form are in the same project, so no .dll or what so ever issue. How do I force Visual Studio to recompile the code and show the changes?
See this answer How to put a UserControl into Visual Studio toolBox
There are several approaches to the problem, might be a good future reference.