private void BtnCancelUpdate_Click(object sender, RoutedEventArgs e) { if (tb_LastTransactionInfo.IsSelected) { l.CancelUpdate(); } else if (tb_FixedTransactionAttrib.IsSelected) { fta.CancelUpdate(); } else if (tb_TransactionReference.IsSelected) { tr.CancelUpdate(); } else if (tb_ControlledTransaction.IsSelected) { ct.CancelUpdate(); } }