app crashes when back button is pressed while the messagebox is visible

[Gianluc]

Hello,
when the application displays the messagebox, if the user presses the back button instead of a button shown by the message, the application crashes.

How can I solve this problem?

Below is the code used to create the messagebox:

    MessageBoxClosedEventArgs args = await RadMessageBox.ShowAsync(new CustomHeaderedContentControl[]  {
                new CustomHeaderedContentControl() { Title = AppResources.Salva, Message = AppResources.msgSalvaEMantieniMod },
                new CustomHeaderedContentControl() { Title = AppResources.NonSalvare, Message = AppResources.msgNonSalvareMod },
                new CustomHeaderedContentControl() { Title = AppResources.Annulla, Message = AppResources.msgContAModificare}  },

                  AppResources.ModificheNonSalvate, AppResources.IlTestoEStatoModificato);

                            // ClickedButton will be null in the case when RadMessageBox is closed because the user pressed the hardware back button.
                            if (args.ClickedButton == null) { return; }
                            CustomHeaderedContentControl option = (CustomHeaderedContentControl)args.ClickedButton.Content;
                            if (option.Title == AppResources.Salva) { salvaTestoNuovo(); }
                            if (option.Title == AppResources.NonSalvare) { NavigationService.Navigate(new Uri("/MainPage.xaml", UriKind.Relative)); }

[Kiril Stanoev]

Hello Gianluc,

Thank you for contacting us. Unfortunately I was unable to reproduce the issue. Could you please send us a sample project demonstrating how to reproduce the issue. This way we will be able to assist you better.

Regards,
Kiril Stanoev
TelerikIf you want to get updates on new releases, tips and tricks and sneak peek previews directly from the developers working on the UI for Windows Phone, subscribe to the blog feed now.

[Gianluc]

I solved the problem, it was caused by the creation of another messagebox before the previous one was closed.

[Victor]

Hello Gianluc,

It's great that you managed to go around this. You are correct. Since RadMessageBox is based on RadWindow there cannot be two message boxes open at the same time.

Regards,
Victor
Telerik