private void CurrencyView_CellValueChanged(object sender, CellValueChangedEventArgs e) { if (CurrencyView.GetFocusedDataRow()["Rus"].ToString() == "" || CurrencyView.GetFocusedDataRow()["Currency"].ToString() == "") { lb_status.Text = "Ошибка: Вы оставили пустое поле!"; } else { DataSaver ds = new DataSaver(login_, password_); lb_status.Text = ds.CurrencyCursFill(CurrencyView.GetFocusedDataRow()); } }