Silverlight Block UI thread in OnNavigatingFrom

Question

In my Silverlight application I want to show a child window which prompts the user if he want to leave the page or stay. The problem is that the UI thread continues to execute when showing the child window. Therefore I am not able to set NavigatingCancelEventArgs.Cancel according to the Result of the child window. How can I solve this problem? Thanks JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

One way way to solve this problem is add an instance variable to your page. Let's call it allowNavigate and set it initially to false. Then when the navigation happens and allowNavigate != true, cancel the navigation and invoke your confirmation dialog. When that dialog completes with a result indicating that the user wants to navigate away from the page, set allowNavigate to true and repeat the navigation programatically.