同步调用BackgroundWorker [英] Calling BackgroundWorker synchronously

问题描述

我想同步给后台工作人员打电话.我希望代码在背景工作人员完成执行后结束执行. 我的BackgroundWorker代码在这里:

I want to call the background worker synchronously. I want execution of the code to end when backgroundworker has completed its execution. My code for BackgroundWorker is here :

{
    BackgroundWorker worker = new BackgroundWorker();
    worker.DoWork += DoWork;
    worker.RunWorkerCompleted += RunWorkerCompleted;
    ...
    worker.RunWorkerAsync();
    //wait for execution to end 
}

一种方法是再次在执行完成之前再次检查状态，但是还有其他好的方法吗?

One way of doing it will be to check the status again n again until its execution is completed but is there any other good way of doing it ?

推荐答案

如果您不希望代码异步执行，请不要将其放入BackgroundWorker ...

If you don't want your code to execute asynchronously, don't put it in a BackgroundWorker...

{ 
    DoWork();
} 

但是，如果出于某些原因导致您绝对需要在BackgroundWorker中包含代码，则可以使用以下代码:

However, if there is some obscure reason why you absolutely need to have the code in the BackgroundWorker, you can use the following:

ManualResetEvent mre = new ManualResetEvent(false);
BackgroundWorker worker = new BackgroundWorker(); 
worker.DoWork += DoWork; 
worker.RunWorkerCompleted += (s, e) => 
                             {
                                 RunWorkerCompleted(s, e); 
                                 mre.Set();
                             };
// ... 
worker.RunWorkerAsync();
mre.WaitOne();

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