“Cross-thread operation not valid” exception on inner controls

Question

I\'ve been struggling with this for quite a while: I have a function designed to add control to a panel with cross-thread handling, the problem is that though the panel and

Answer 1

In your own answer you state:

To clarify things: "panel" is created on the base thread and "ctrl" on the new thread

I think this might be the cause of your problem. All UI elements should be created on the same thread (the base one). If you need to create "ctrl" as a consequence of some action in the new thread, then fire an event back to the base thread and do the creation there.