PersistenceProvider.BeginDelete 方法

定义

命名空间:

System.ServiceModel.Persistence

程序集:

System.WorkflowServices.dll

在派生类中实现时，表示“删除”阶段开始。 将服务状态数据从持久性存储区中永久删除时将进入“删除”阶段。

public:
 abstract IAsyncResult ^ BeginDelete(System::Object ^ instance, TimeSpan timeout, AsyncCallback ^ callback, System::Object ^ state);

public abstract IAsyncResult BeginDelete (object instance, TimeSpan timeout, AsyncCallback callback, object state);

abstract member BeginDelete : obj * TimeSpan * AsyncCallback * obj -> IAsyncResult

Public MustOverride Function BeginDelete (instance As Object, timeout As TimeSpan, callback As AsyncCallback, state As Object) As IAsyncResult

参数

instance

Object

实际的实例状态。

timeout

TimeSpan

时间段，永久性提供程序在该时间段后将中止此尝试。

callback

AsyncCallback

操作完成时将要调用的方法。

state

Object

一个用户提供的对象，该对象用于将此特定异步操作与其他操作区别开来。

返回

IAsyncResult

BeginDelete(Object, TimeSpan, AsyncCallback, Object) 异步方法调用的状态。