private void BtnObrisiSatnicu_Click(object sender, RoutedEventArgs e) { int obrisan = k.obrisiSatnicu(dataGrid.SelectedItem as Satnica); if (obrisan == 0) { MessageBox.Show("Neuspesno obrisana satnica!"); return; } else { MessageBox.Show("Uspesno obrisana satnica!"); } dataGrid.ItemsSource = k.vratiListuSatnica(); }