Confused by the behavior of Dispatcher.BeginInvoke()

Question

Could someone shed some light on an issue I\'m having?

I\'m working on a wpf project. The scenario is as below:

I need to pop up a window(model window) on ma

Answer 1

BeginInvoke is a non-blocking method; it adds the action to the dispatcher queue, and doesn't wait for its completion. You should use Invoke instead, which calls the method synchronously on the dispatcher thread.