重用的BackgroundWorker不止一次 [英] reusing the backgroundworker more than once

问题描述

我使用的是后台工作做一个昂贵的操作：

i am using the background worker to do an expensive operation:

backgroundWorker1.DoWork += new DoWorkEventHandler(backgroundWorker1_DoWork);
backgroundWorker1.ProgressChanged += new ProgressChangedEventHandler(backgroundWorker1_ProgressChanged);
backgroundWorker1.RunWorkerCompleted += new RunWorkerCompletedEventHandler(backgroundWorker1_RunWorkerCompleted);
backgroundWorker1.RunWorkerAsync(inputs);

最后我有这样的：

At the end i have this:

 void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
   Messagebox.Show("Done with expensive operation 1"};
}

我现在有另一个昂贵的操作。我可以重复使用同样的后台工作。我现在想新的回调，因为我不想开关在ProgressChanged和DoWork的回调语句，以确定是否我在做什么操作1或2。

I now have another expensive operation. Can i reuse this same background worker. I now want new callbacks as i dont want switch statements on the ProgressChanged and DoWork Callbacks to determine if i am doing operation 1 or 2.

难道只是简单的使用2个独立的后台工作类

Is it just simpler to use 2 seperate background worker classes

推荐答案

是的，你可以重新使用的BackgroundWorker - 但你只能使用一次任何时候 - 。不能同时如果操作是不同的，但是，我会使用一个单独的工作，否则你就必须解开事件，勾正确的事件等凌乱

Yes, you can re-use a BackgroundWorker - but you can only use it once at any time - not concurrently. If the operations are different, however, I'd use a separate worker. Otherwise you'll have to unhook the events, hook the correct events, etc. Messy.

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