private void BtnDetail_Click(object sender, RoutedEventArgs e) { if (cBookID == 0) { MessageBox.Show("Bitte zunächst ein Buch auswählen!"); return; } AddEditBook ae = new AddEditBook(cBookID); ae.ShowDialog(); }
private void Row_DoubleClick(object sender, MouseButtonEventArgs e) { AddEditBook ae = new AddEditBook(cBookID); ae.ShowDialog(); }