Opening a new Window from a dying Thread

>why don't you pass the result to the worker thread and create the result window there? How do I do that? How can I pass a result from a thread? I tried doing it with an event, but then the event handler seems to run inside the same thread, so if I send an event at the end of the thread and the event handler opens a window, it goes away again as soon as the thread ends.

you could do one of two things. keep the thread alive till the window is disposed. for example put it in a sleep loop waiting for a message. and generate that message in the dispose propriety of your window form. this would be the easyest i think. or you could clone your window form in the worker thread and show it from there. i'm guessing you create the window in the result thread and when the thread dies it cleans up every resource alocated to it .. including the window. unfortunately forms are not thread safe and i 'm not even sure if my clone suggestion will actualy work. why don't you pass the result to the worker thread and create the result window there? it'd be much easyer i think.

That should work, I guess, but it's quite unfortunate since I would prefer not to annoy the user with a modal dialog when no mode is needed. Oh well... Thanks for the idea!

Have your worker thread spawn a modal dialog. This should block the thread and keep it from exiting until the dialog is closed.