private void SaveButton_Discret_Click(object sender, RoutedEventArgs e) { int countOfIntervals = Convert.ToInt32(IntervalsText_Discret.Text); int numOfColumn = ColumnCombo_Discret.SelectedIndex; if (numOfColumn < 0) { MessageBox.Show("Wybierz kolumnę"); } else { Discretization.DoDiscretization(numOfColumn, countOfIntervals); //odświeżenie widoku - wyświetlenie zmian DisplayNewDataInMenu(numOfColumn + 1); } }