Hi,

I recently brought some order in my code and splitted it to different namespaces and assemblies.

In one assembly I have a custom "MyForm" derived from System.Windows.Form. This assembly is referenced in my project and I derived another Form (MyDerivedForm) from it in my project-assembly.

When I try to open MyDerivedForm in Designer-Mode Visual Studio crashes, no error message, it just vanishes.

When I had all my code in one big project this worked like charm.

Do I do something obviously wrong?

Thanks in advance for your help.

Hi again,

well, I think I found it. The form which crashes VS has a UserControl written by me on it. What I don't understand is why putting this control on a new Form doesn't trigger this problem. It only happens with my existing forms.

Maybe someone has an idea.

Thanks in advance.