IChangeToken.RegisterChangeCallback(Action<Object>, Object) 方法

定义

命名空间:

Microsoft.Extensions.Primitives

程序集:

Microsoft.Extensions.Primitives.dll

包:

Microsoft.Extensions.Primitives v8.0.0

Source:

IChangeToken.cs

注册将在项更改时调用的回叫。 调用回叫之前，必须设置 HasChanged。

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

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

abstract member RegisterChangeCallback : Action<obj> * obj -> IDisposable

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

参数

callback

Action<Object>

要调用的 Action<T>。

state

Object

要传递给该回叫的状态。

返回

IDisposable

可用于注销回叫的 IDisposable。