WinRT - MessageDialog.ShowAsync will throw UnauthorizedAccessException in my custom class

Question

I Want to write my own control, when the ctor is invoked, a MessageBox is shown.

public class Class1
{
    public Class1()
    {
        ShowDialog();
    }
         


        

Answer 1

As MessageDialogue needs to run on the UI thread, can you try switching it to:

var dispatcher = Windows.UI.Core.CoreWindow.GetForCurrentThread().Dispatcher;
dispatcher.RunAsync(DispatcherPriority.Normal, );