CollectionChangeEventHandler 代理人

定義

表示當在集合中加入或移除元素時,會處理引發的 CollectionChanged 事件的方法。Represents the method that handles the CollectionChanged event raised when adding elements to or removing elements from a collection.

public delegate void CollectionChangeEventHandler(System::Object ^ sender, CollectionChangeEventArgs ^ e);
public delegate void CollectionChangeEventHandler(object sender, CollectionChangeEventArgs e);
type CollectionChangeEventHandler = delegate of obj * CollectionChangeEventArgs -> unit
Public Delegate Sub CollectionChangeEventHandler(sender As Object, e As CollectionChangeEventArgs)

參數

sender
Object

事件的來源。The source of the event.

e
CollectionChangeEventArgs

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

繼承
CollectionChangeEventHandler

範例

如需使用 CollectionChangeEventHandler 委派的範例,請參閱 DataColumnCollection 類別的 CollectionChanged 事件中的範例程式碼。For an example of using the CollectionChangeEventHandler delegate, see the sample code in the CollectionChanged event of the DataColumnCollection class.

備註

建立 CollectionChangeEventHandler 委派時,必須識別處理事件的方法。When you create a CollectionChangeEventHandler delegate, you identify the method that will handle the event. 若要使事件與您的事件處理常式產生關聯,請將委派的執行個體 (Instance) 加入至事件。To associate the event with your event handler, add an instance of the delegate to the event. 除非您移除委派,否則每當事件發生時就會呼叫事件處理常式。The event handler is called whenever the event occurs, unless you remove the delegate. 如需事件處理常式委派的詳細資訊,請參閱處理和引發事件For more information about event handler delegates, see Handling and Raising Events.

擴充方法

GetMethodInfo(Delegate)

取得表示特定委派所代表之方法的物件。Gets an object that represents the method represented by the specified delegate.

適用於

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