不支持为WaitAll用于在STA线程多个句柄 [英] WaitAll for multiple handles on a STA thread is not supported

问题描述

1. 为什么我得到这个错误信息？ 为WaitAll用于在STA线程，不支持多个句柄。


2. 我应该用[MTAThreadAttribute] attribut？ 更新：不到风度与WPF应用程序工作

1. Why do I get this error message? "WaitAll for multiple handles on a STA thread is not supported."
2. Should I use [MTAThreadAttribute] attribut? Update: Dosn't work with WPF applications!

请注意：
 这错误是在行WaitHandle.WaitAll的（doneEvents）;
 我使用的是标准的 WPF项目

private void Search()
{
    const int CPUs = 2;
    var doneEvents = new ManualResetEvent[CPUs];

    // Configure and launch threads using ThreadPool:
    for (int i = 0; i < CPUs; i++)
    {
        doneEvents[i] = new ManualResetEvent(false);
        var f = new Indexer(Paths[i], doneEvents[i]);
        ThreadPool.QueueUserWorkItem(f.WaitCallBack, i);
    }

    // Wait for all threads in pool 
    WaitHandle.WaitAll(doneEvents);
    Debug.WriteLine("Search completed!");
}

更新：以下解决方案不适用于WPF应用程序工作！
这是不可能改变的主要应用属性MTAThreadAttribute。这将导致以下错误：

Update: The following solution doesn’t work for WPF applications! It is not possible to change the main application attribute to MTAThreadAttribute. It will result in the following error:

错误：

推荐答案

怎么样使用任务做你的线程你。

What about using the Tasks to do your threading for you.

<一个href=\"http://msdn.microsoft.com/en-us/library/system.threading.tasks.task.aspx\">http://msdn.microsoft.com/en-us/library/system.threading.tasks.task.aspx

var task1 = Task.Factory.StartNew(() => DoSomeWork());
var task2 = Task.Factory.StartNew(() => DoSomeWork());
var task3 = Task.Factory.StartNew(() => DoSomeWork());
Task.WaitAll(task1, task2, task3);

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