在Combobox C中对ObservableCollection进行排序＃WPf

Question

我想在组合框中对ObservableCollection进行排序，

我的结果没有排序：

我的ViewModel：

 private ObservableCollection<IdentificationSystemType> codeTypeEnum;
   public IdentificationSystemType CodeType
     {
         get { return codeType; }
         set { codeType = value;
         OnPropertyChanged("CodeType");
         }
     }

       public NewIdentificationSystemViewModel()
    {
        _identificationToAdd = new IdentificationSystem();
        identificationDeviceToAdd = new IdentificationDevice();

        _resetIdentificationCmd = new RelayCommand<string>(resetIdentification);
        saveCommand = new RelayCommand<string>(addFunc, canSave);         
         codeTypeEnum = new ObservableCollection<IdentificationSystemType>(Enum.GetValues(typeof(IdentificationSystemType)).Cast<IdentificationSystemType>());
              }

我曾尝试使用var ordered = codeTypeEnum.OrderBy(x => x);，但没有任何东西..它是一样的 我的Enum声明：

 public enum IdentificationTypes : int
   {
    TerminalEntryGate = 1,
    TerminalExitGate = 2,
    LoadingAreaEntryGate = 3,
    LoadingAreaExitGate = 4,
    IslandEntryGate = 5,
    IslandExitGate = 6,
    BayEntryGate = 7,
    BayExitGate = 8,
    ScalingAreaEntryGate = 9,
    ScalingAreaExitGate = 10,
    OfficeAreaEntryGate = 11,
    OfficeAreaExitGate = 12,
    TankFarmEntryGate = 13,
    TankFarmExitGate = 14,
    StagingAreaEntryGate = 15,
    StagingAreaExitGate = 16,      
    LoadingBayIdentification = 21,
    LoadingArmIdentification = 22,
    LoadingIslandIdentification = 23,        
    PresetIdentification = 27
  }

我该如何解决？ 感谢，

Answer 1

变化：

codeTypeEnum = new ObservableCollection<IdentificationSystemType>(Enum.GetValues(typeof(IdentificationSystemType))
.Cast<IdentificationSystemType>());

为：

codeTypeEnum = new ObservableCollection<IdentificationSystemType>(Enum.GetValues(typeof(IdentificationSystemType))
.Cast<IdentificationSystemType>().OrderBy(x => x.ToString()));

强制按字母顺序排序。

Answer 2

由于您的枚举属于int类型，因此您可以按这些数字来订购您的收藏。如果要按字母顺序对集合进行排序，则需要先将整数解析为字符串。

您可以在提供OrderBy方法的键选择器功能中执行此操作。

var values = Enum.GetValues(typeof(IdentificationTypes)).Cast<IdentificationTypes>();
var valueList = new ObservableCollection<IdentificationTypes>(values);
var orderedList = valueList.OrderBy(x => x.ToString());