Hi all,

this is occurring on Version 2008.3:

I have a UserControl containing a TextBox in a Panel wich is docked together with other Panes in a TabGroup.

The TextBox has a Validating event where I display a MessageBox if the text is wrong. After entering a Text which is not validated and clicking on another tab, the MessageBox is shown and then the application hangs. I attach a simple demo project.

Does anybody have an idea how can I avoid this?

Thanks,

Anca