Why do my toolbox items disappear in Visual Studio 2008?

Question

I\'m working on a solution that contains multiple projects targeting Windows Mobile 5 and standard Windows applications.

Lately when opening up a form in designer th

Answer 1

I've noticed this exact same thing for regular WinForms as well. I can't speak to mobile applications but in regular winforms this has a tendency to happen.

I believe it's actually a bug in Visual Studio.

There are some things you can do (again, for WinForms. I'm not sure about mobile) with adding attributes to your control. Such as:

[ToolboxBitmap(typeof(MyControl), "MyControlBitmap")]

There are some other useful related things on this site:

http://en.csharp-online.net/Design-Time_Integration-Attributes