private async void btnSave_Click(object sender, RoutedEventArgs e) { if (await BookViewModel.AddBookAsync() != null) { this.Frame.GoBack(); } else { FlyoutBase.ShowAttachedFlyout(sender as FrameworkElement); } }
private async void btnSave_Click(object sender, RoutedEventArgs e) { if (await BookViewModel.AddBookAsync() != null) { this.Frame.GoBack(); } else { FlyoutBase.ShowAttachedFlyout(sender as FrameworkElement); } }