DataGridViewCellCollection.OnCollectionChanged(CollectionChangeEventArgs) 方法

定義

引發 CollectionChanged 事件。Raises the CollectionChanged event.

protected:
 void OnCollectionChanged(System::ComponentModel::CollectionChangeEventArgs ^ e);
protected void OnCollectionChanged (System.ComponentModel.CollectionChangeEventArgs e);
member this.OnCollectionChanged : System.ComponentModel.CollectionChangeEventArgs -> unit
Protected Sub OnCollectionChanged (e As CollectionChangeEventArgs)

參數

e
CollectionChangeEventArgs

CollectionChangeEventArgs,其中包含事件資料。A CollectionChangeEventArgs that contains the event data.

備註

引發事件會透過委派叫用此事件處理常式。Raising an event invokes the event handler through a delegate. 如需詳細資訊,請參閱 處理和引發事件For more information, see Handling and Raising Events.

OnCollectionChanged 方法也允許衍生類別處理事件,而不用附加委派。The OnCollectionChanged method also allows derived classes to handle the event without attaching a delegate. 這是在衍生類別中處理事件的慣用技巧。This is the preferred technique for handling the event in a derived class.

給繼承者的注意事項

當在衍生類別中覆寫 OnCollectionChanged(CollectionChangeEventArgs) 時,請確定呼叫基底類別的 OnCollectionChanged(CollectionChangeEventArgs) 方法,使已註冊的委派能接收到事件。When overriding OnCollectionChanged(CollectionChangeEventArgs) in a derived class, be sure to call the base class's OnCollectionChanged(CollectionChangeEventArgs) method so that registered delegates receive the event.

適用於

另請參閱