private void EditCommand_Executed(object sender, ExecutedRoutedEventArgs e)
        {
            //deep read the currently selected calibration
            LinearCalibration lc = LinearCalibration.GetAllLC("[IDCalibration] = " +
                                                              ((LinearCalibration)cbLCSelection.SelectedItem).CalibrationID, true)?.Single();
            CalibrationDataDialog cldDlg = new CalibrationDataDialog(ref lc);

            if (cldDlg.ShowDialog() == true)
            {
                try
                {
                    lc.Update();
                    CALogger.WriteToLogFile(string.Format("Изменена калибровка ID{0};{1} - {2}",
                                                          lc.CalibrationID, lc.Description, lc.CalibrationType.ToString()));
                    FillData();
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message + " в " + ex.Source, "Ошибка");
                }
            }
        }