CancellationChangeToken.RegisterChangeCallback 方法

定義

命名空間:

Microsoft.Extensions.Primitives

組件:

Microsoft.Extensions.Primitives.dll

註冊回呼，該回呼會在項目變更時叫用。 HasChanged 必須在叫用回呼之前設定。

public:
 virtual IDisposable ^ RegisterChangeCallback(Action<System::Object ^> ^ callback, System::Object ^ state);

public IDisposable RegisterChangeCallback (Action<object> callback, object state);

public IDisposable RegisterChangeCallback (Action<object?> callback, object? state);

abstract member RegisterChangeCallback : Action<obj> * obj -> IDisposable
override this.RegisterChangeCallback : Action<obj> * obj -> IDisposable

Public Function RegisterChangeCallback (callback As Action(Of Object), state As Object) As IDisposable

參數

callback

Action<Object>

要叫用的 Action<T>。

state

Object

要傳遞至回呼的狀態。

傳回

IDisposable

用來取消註冊回呼的 IDisposable。

實作

RegisterChangeCallback(Action<Object>, Object)