EventDescriptorCollection.Find(String, Boolean) 方法

定義

命名空間:

System.ComponentModel

組件:

System.ComponentModel.TypeConverter.dll

來源:

EventDescriptorCollection.cs

使用集合中之指定名稱取得事件的描述。

public:
 virtual System::ComponentModel::EventDescriptor ^ Find(System::String ^ name, bool ignoreCase);

public virtual System.ComponentModel.EventDescriptor? Find (string name, bool ignoreCase);

abstract member Find : string * bool -> System.ComponentModel.EventDescriptor
override this.Find : string * bool -> System.ComponentModel.EventDescriptor

Public Overridable Function Find (name As String, ignoreCase As Boolean) As EventDescriptor

參數

name

String

要從集合中取得的事件名稱。

ignoreCase

Boolean

如果您要忽略事件的大小寫，則為 true，否則為 false。

傳回

EventDescriptor

具有指定名稱的 EventDescriptor 或 null (如果事件不存在)。

範例

下列程式代碼範例會尋找特定的 EventDescriptor。 它會在文字框中列印此 EventDescriptor 元件的類型。 它要求 button1 已在表單上具現化 和 textBox1 。

private:
   void FindEvent()
   {
      // Creates a new collection and assigns it the events for button1.
      EventDescriptorCollection^ events = TypeDescriptor::GetEvents( button1 );
      
      // Sets an EventDescriptor to the specific event.
      EventDescriptor^ myEvent = events->Find( "Resize", false );
      
      // Prints the event name and event description.
      textBox1->Text = String::Concat( myEvent->Name, ": ", myEvent->Description );
   }

private void FindEvent() {
    // Creates a new collection and assigns it the events for button1.
    EventDescriptorCollection events = TypeDescriptor.GetEvents(button1);
 
    // Sets an EventDescriptor to the specific event.
    EventDescriptor myEvent = events.Find("Resize", false);
 
    // Prints the event name and event description.
    textBox1.Text = myEvent.Name + ": " + myEvent.Description;
 }

Private Sub FindEvent()
    ' Creates a new collection and assigns it the events for button1.
    Dim events As EventDescriptorCollection = TypeDescriptor.GetEvents(button1)
    
    ' Sets an EventDescriptor to the specific event.
    Dim myEvent As EventDescriptor = events.Find("Resize", False)
    
    ' Prints the event name and event description.
    textBox1.Text = myEvent.Name & ": " & myEvent.Description
End Sub

備註

注意

套 HostProtectionAttribute 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 HostProtectionAttribute 類別或 SQL Server 程式設計與主機保護屬性。

另請參閱

• EventDescriptor
• TypeDescriptor