Commented Issue: page transition complete event [8409]

I'm navigating from Page1 to Page2. Both pages uses Turnstile animation that's part of toolkit. Page2 shows a loading progress bar till my webservice call is over. I'm setting the isindeterminate property of this progress bar to true in OnNavigatedTo event of Page2 and setting it to false once the webservice completes. However, when I actually run the application, it transitions from Page1 to Page2, doesn't show me the progress bar and then finally loads the data after sometime. I figured out that the OnNavigatedTo event is getting triggered before the animation completes. So it is not setting the property at all. If I remove the animation, it works fine. Is there any event that gets triggered after the animation is complete?
Comments: ** Comment from web user: Lavinski **

I had the same question you did, if the version of silverlight you are using has the TransitionService class you can use it to hook into the completed event.

http://lavinski.tumblr.com/post/26863266871/silverlight-page-transition-complete-event