private void DeleteTodoButton_Click(object sender, RoutedEventArgs e) { if (ViewModel.SelectedItem != null) { ViewModel.DeleteTodoItem(ViewModel.SelectedItem.Id); if (ViewModel.AllItems.Count > 0) { ViewModel.NewestItem = ViewModel.AllItems[0]; } else { ViewModel.NewestItem = null; } Frame.Navigate(typeof(MainPage), ViewModel); } }