private void btnSaveStartCountry_Click(object sender, RoutedEventArgs e) { LogicHandler l = new LogicHandler(); var dayinfo = ""; var breakfast = CHBBreakfast.IsChecked.Value; var lunch = CHBLunch.IsChecked.Value; var dinner = CHBDinner.IsChecked.Value; double subsistenceDouble = Convert.ToDouble(LbTraktamente.Content.ToString()); var subsistence = l.CalculateSubsistenceDeduction(breakfast, lunch, dinner, subsistenceDouble); try { if (CHBVacationday.IsChecked == true) { dayinfo = listBoxDays.SelectedItem.ToString() + " - " + CbCountries.SelectedItem.ToString() + " - " + " LEDIG"; listBoxDays.Items[listBoxDays.SelectedIndex] = dayinfo; } else { dayinfo = listBoxDays.SelectedItem.ToString() + " - " + CbCountries.SelectedItem.ToString() + " - " + subsistence + " kr"; listBoxDays.Items[listBoxDays.SelectedIndex] = dayinfo; } } catch { MessageBox.Show("Du måste välja en dag samt fylla i information att spara."); } }