Task and Async Test

//1 ------------ Universal apps --------
private async void but1_Click(object sender, RoutedEventArgs e)
        {
            ProgressUpdateTop.Visibility = Visibility.Visible;
            await getMethod("all");
            ProgressUpdateTop.Visibility = Visibility.Collapsed;
        }

        private async Task getMethod(string p)
        {
            string test = p + "!!";
            await Task.Delay(5000);
            test += p;
            MessageDialog msgbox = new MessageDialog("Message Box is displayed");
            await msgbox.ShowAsync();
        }

//2 ------------ WPF desktop apps --------
private async void but1_Click(object sender, RoutedEventArgs e)
        {
            ProgressUpdateTop.Visibility = Visibility.Visible;
            await getMethod("all");

            ProgressUpdateTop.Visibility = Visibility.Collapsed;
        }

        private async Task getMethod(string p)
        {
            string test = p + "!!";
            await Task.Delay(5000);
            test += p;
            MessageBox.Show("Message Box is displayed");

            await Task.Run(async () =>
            {
                Thread.Sleep(5000);
                //await this.Dispatcher.InvokeAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () => getMethod("all"));
            });
            MessageBox.Show("Message Box is displayed2");
        }