EventDescriptorCollection.GetEnumerator 方法

定義

命名空間:

System.ComponentModel

組件:

System.ComponentModel.TypeConverter.dll

來源:

EventDescriptorCollection.cs

取得這個 EventDescriptorCollection 的列舉值。

public:
 System::Collections::IEnumerator ^ GetEnumerator();

public System.Collections.IEnumerator GetEnumerator ();

member this.GetEnumerator : unit -> System.Collections.IEnumerator

Public Function GetEnumerator () As IEnumerator

傳回

IEnumerator

列舉值，實作 IEnumerator。

範例

下列程式代碼範例會取得 上 button1事件的列舉值。 它會使用列舉值來列印集合中事件的名稱。 它要求 button1 已在表單上具現化 和 textBox1 。

private:
   void MyEnumerator()
   {
      // Creates a new collection, and assigns to it the events for button1.
      EventDescriptorCollection^ events = TypeDescriptor::GetEvents( button1 );
      
      // Creates an enumerator.
      IEnumerator^ ie = events->GetEnumerator();
      
      // Prints the name of each event in the collection.
      Object^ myEvent;
      while ( ie->MoveNext() == true )
      {
         myEvent = ie->Current;
         textBox1->Text = String::Concat( textBox1->Text, myEvent, "\n" );
      }
   }

private void MyEnumerator() {
    // Creates a new collection, and assigns to it the events for button1.
    EventDescriptorCollection events = TypeDescriptor.GetEvents(button1);
 
    // Creates an enumerator.
    IEnumerator ie = events.GetEnumerator();
 
    // Prints the name of each event in the collection.
    Object myEvent;
    while(ie.MoveNext() == true) {
       myEvent = ie.Current;
       textBox1.Text += myEvent.ToString() + '\n';
    }
 }

Private Sub MyEnumerator()
    ' Creates a new collection, and assigns to it the events for button1.
    Dim events As EventDescriptorCollection = TypeDescriptor.GetEvents(button1)
    
    ' Creates an enumerator.
    Dim ie As IEnumerator = events.GetEnumerator()
    
    ' Prints the name of each event in the collection.
    Dim myEvent As Object
    While ie.MoveNext() = True
        myEvent = ie.Current
        textBox1.Text += myEvent.ToString() & ControlChars.Cr
    End While
End Sub

備註

注意

HostProtectionAttribute套用至這個類別的屬性具有下列Resources屬性值：Synchronization。 HostProtectionAttribute 不會影響桌面應用程式 (這些應用程式的啟動方式一般都是按兩下圖示、輸入命令或在瀏覽器輸入 URL)。 如需詳細資訊，請參閱 類別HostProtectionAttribute或 SQL Server 程式設計和主機保護屬性。

另請參閱

• EventDescriptor
• TypeDescriptor
• IEnumerator