IEnumerableを使ってリストをソートする - XAML

Question

私は車両のリストと空のIEnumerableを持っています。ユーザーがXAML上でラジオボタンを変更すると、VehicleTypeに一致しないリストから特定の車両を削除したい

質問：同じ文字列を持たない車両のリストを削除して表示するにはどうすればいいですか？ユーザーによって示さタイプ（プロパティでVehicleType）

コード：

public List<Vehicle> VehicleList = new List<Vehicle>(); 
    public IEnumerable<Vehicle> FilteredVehicleList = new List<Vehicle>(); 

     private void Window_Loaded(object sender, RoutedEventArgs e) 
    { 
     Vehicle v1 = new Car() { Make = "Ford", Model = "Fiesta", Price = 10000, Year = "1999", Colour = "Red", Mileage = 40000, Description = "Lovely red car, 4 wheel, optional steering wheel.", VehicleType = "Car"}; 
     VehicleList.Add(v1); 
     Vehicle v2 = new Car() { Make = "Ford", Model = "Mondeo", Price = 20000, Year = "2001", Colour = "Green", Mileage = 36000, Description = "Lovely green car, 4 wheel, optional steering wheel.", VehicleType = "Car" }; 
     VehicleList.Add(v2); 
     Vehicle v3 = new Car() { Make = "Ford", Model = "Fiesta", Price = 15000, Year = "2003", Colour = "Silver", Mileage = 14000, Description = "Lovely silver car, 4 wheel, optional steering wheel.", VehicleType = "Car" }; 
     VehicleList.Add(v3); 
     Vehicle v4 = new Car() { Make = "Opel", Model = "Astra", Price = 25000, Year = "2002", Colour = "Silver", Mileage = 27000, Description = "Lovely silver car, 4 wheel, optional steering wheel.", VehicleType = "Car" }; 
     VehicleList.Add(v4); 
     Vehicle v5 = new Bike() { Make = "Kawasaki", Model = "ZX", Price = 30000, Year = "2008", Colour = "Black", Mileage = 25000, Description = "Lovely black bike, 2 wheel, no optional steering wheel.", VehicleType = "Bike" }; 
     VehicleList.Add(v5); 

     listbox_cars.ItemsSource = VehicleList; 

     string[] filterBox = { "All", "Price", "Mileage", "Make" }; 
     comboBox_sortCars.ItemsSource = filterBox; 
     comboBox_sortCars.SelectedIndex = 0; 
    } 

     private void comboBox_sortCars_SelectionChanged(object sender, SelectionChangedEventArgs e) 
    { 
     var output = listbox_cars.ItemsSource; 
     string sortBy = comboBox_sortCars.SelectedValue.ToString(); 

     switch (sortBy) 
     { 
      case "All": 
       output = VehicleList; 
       break; 

      case "Make": 
       FilteredVehicleList = VehicleList.OrderBy(i => i.Make); 
       output = FilteredVehicleList; 
       break; 

      case "Price": 
       FilteredVehicleList = VehicleList.OrderBy(i => i.Price); 
       output = FilteredVehicleList; 
       break; 

      case "Mileage": 
       FilteredVehicleList = VehicleList.OrderBy(i => i.Mileage); 
       output = FilteredVehicleList; 
       break; 
     } 

Answer 1

あなたはあなたのスイッチの後ItemsSourceを設定する必要があります。

listbox_cars.ItemsSource = output;