Silverlight 5 AccessViolationException

Question

I installed the Silverlight 5 VS 2010 tools and the 64-bit Developer runtime and now I get a System.AccessViolationException when I do a specific action. The projects are st

Answer 1

I finally tracked down my specific problem. It was only happening with an element after my inherited ChildWindow.

I had this hack that was trying to fix a bug I had a few months ago. Once I removed it, the exception stopped happening. I'm pretty certain I don't need the hack anymore because of improvements elsewhere, so it's a double bonus! I tried in several places to marshal the calls back to the UI thread, but something in the timer (which is supposed to be on the UI thread) was not allowing it (that's my theory). Good luck to everyone looking for the answer. +1 for the ones so far!

this.Closed += (s, e) =>
{
var timer = new System.Windows.Threading.DispatcherTimer();
timer.Interval = TimeSpan.FromSeconds(.25);
timer.Tick += (object senderTimer, EventArgs eTimer) =>
{
    timer.Stop();

    // without the timer, the content will disappear before the window closes
    this.contentHolder.Child = null;
};

timer.Start();
};

I wasn't able to reproduce this with a ChildWindow in a separate project. So this answer isn't that useful.