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 v11.0.0-preview.4.26230.115

Source:

IChangeToken.cs

注册将在条目更改时调用的回调。 HasChanged 必须在调用回调之前设置。

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 Action<T> 调用的。

state

Object

要传递到回调的状态。

返回

IDisposable

用于注销回调的一个 IDisposable 。