private async Task ExecuteAsync(ConfirmMessageDialogNotification confirmMessageDialogNotification) { var result = false; var msg = new MessageDialog(confirmMessageDialogNotification.Message, confirmMessageDialogNotification.Title); msg.Commands.Add(new UICommand("Yes", _ => { result = true; })); msg.Commands.Add(new UICommand("No", _ => { result = false; })); await msg.ShowAsync(); confirmMessageDialogNotification.Result = result; }