private void miUpdate_Click(object sender, RoutedEventArgs e) { if (lstViewCar.SelectedItems.Count != 1) { MessageBox.Show("Please choose one item to update", "Information"); return; } try { int index = lstViewCar.SelectedIndex; AddEditDialog addEditDialog = new AddEditDialog((Car)lstViewCar.SelectedItem); addEditDialog.Owner = this; addEditDialog.AddNewCarCallback += (m, en, f) => { model = m; engine = en; fuel = f; }; bool?result = addEditDialog.ShowDialog(); // this line must be stay after the assignment, otherwise value is not assigned if (result == true) { carList.ElementAt(index).MakeModel = model; carList.ElementAt(index).EngineSize = engine; carList.ElementAt(index).FuelType = fuel; } } catch (DataInvalidException ex) { MessageBox.Show(ex.Message, "Error Information"); } }
private void CommandBinding_AddNewCar(object sender, ExecutedRoutedEventArgs e) { try { AddEditDialog addEditDialog = new AddEditDialog(null); addEditDialog.Owner = this; addEditDialog.AddNewCarCallback += (m, en, f) => { model = m; engine = en; fuel = f; }; bool?result = addEditDialog.ShowDialog(); // this line must be stay after the assignment, otherwise value is not assigned if (result == true) { carList.Add(new Car(model, engine, fuel)); } } catch (DataInvalidException ex) { MessageBox.Show(ex.Message, "Error Information"); } lstViewCar.SelectedIndex = lstViewCar.Items.Count - 1;//for status bar selection change }