多次重用后台工作者
我正在使用后台工作人员执行一项昂贵的操作：
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：
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。 我可以重用这个相同的后台工作者吗？ 我现在想要新的回调，因为我不想在 ProgressChanged 和 DoWork 回调上使用 switch 语句来确定我是否正在执行操作 1 或 2。
使用 2 个单独的后台工作类是否更简单
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);
At the end i have this:
void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
Messagebox.Show("Done with expensive operation 1"};
}
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.
Is it just simpler to use 2 seperate background worker classes
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是的，您可以重复使用
BackgroundWorker- 但您只能随时使用它一次 - 不能同时使用。 但是，如果操作不同，我会使用单独的工作人员。 否则你将不得不取消事件的挂钩，挂钩正确的事件，等等。混乱。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.