委托一个任务并在完成时得到通知（在C＃中） [英] Delegating a task in and getting notified when it completes (in C#)

问题描述

在概念上，我想完成以下工作，但是在C＃中正确编写代码有困难：

Conceptually, I would like to accomplish the following but have had trouble understand how to code it properly in C#:

SomeMethod { // Member of AClass{}
    DoSomething;
    Start WorkerMethod() from BClass in another thread;
    DoSomethingElse;
}

然后，当WorkerMethod（）完成后，运行：

Then, when WorkerMethod() is complete, run this:

void SomeOtherMethod()  // Also member of AClass{}
{ ... }

任何人都可以举个例子吗？

Can anyone please give an example of that?

推荐答案

BackgroundWorker 类已添加到.NET 2.0中，以达到此目的。

The BackgroundWorker class was added to .NET 2.0 for this exact purpose.

简而言之，您可以执行以下操作： / p>

In a nutshell you do:

BackgroundWorker worker = new BackgroundWorker();
worker.DoWork += delegate { myBClass.DoHardWork(); }
worker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(SomeOtherMethod);
worker.RunWorkerAsync();

如果需要，您还可以添加如取消和进度报告等花哨的东西：）

You can also add fancy stuff like cancellation and progress reporting if you want :)

这篇关于委托一个任务并在完成时得到通知（在C＃中）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！