同步调用BackgroundWorker

Question

我想同步调用后台工作程序.我希望执行代码在backgroundworker完成执行时结束.我的BackgroundWorker代码在这里:

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

一种方法是再次检查状态,直到执行完成,但有没有其他好的方法呢？

Answer 1

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

{ 
    DoWork();
} 

但是,如果有一些不明确的原因,您绝对需要使用代码BackgroundWorker,您可以使用以下内容:

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();