Does WebBrowser's DocumentCompleted occurs on the same thread as the one that calls Navigate?

Question

I'm almost sure it does but I just need to make sure. I don't want my app to be executing another method at the same time DocumentCompleted is being called.

Answer 1

No, it is raised on the thread that created the WebBrowser, the one that's also pumping the message loop that keeps events on WebBrowser alive. Calling Navigate() from a worker thread is technically possible but unwise if you want to keep your ducks in a row.