ThreadPool.QueueUserWorkItem用例 [英] ThreadPool.QueueUserWorkItem use case

问题描述

我试图使用该方法是这样的：

I'm trying to use that method this way:

public void Method()
{
        ThreadPool.QueueUserWorkItem(() =>
        {
            while(!paused)
            {
                ThreadPool.QueueUserWorkItem(() => {...);
            }
        });
    }
}

在问题出现的原因，它抛出我的编译错误。第一次调用

The problem comes cause it throws me a compilation error in the first call.

错误CS1593：代理 System.Threading.WaitCallback不采取
0的论点

error CS1593: Delegate System.Threading.WaitCallback' does not take 0' arguments

中如何做到这一点不带参数任何想法？ ？，任何其他

Any idea of how to do it without arguments? , any alternative?

推荐答案

您只需提供lambda表达式的参数，而忽略它：

You can just provide a parameter for the lambda expression, and ignore it:

ThreadPool.QueueUserWorkItem(ignored =>
{
    while(!paused)
    {
        ThreadPool.QueueUserWorkItem(alsoIgnored => {...});
    }
});

或者使用，而不是一个匿名方法：

Or use an anonymous method instead:

ThreadPool.QueueUserWorkItem(delegate
{
    while(!paused)
    {
        ThreadPool.QueueUserWorkItem(delegate {...});
    }
});

如果你不关心匿名方法的参数，你不必说出它们。

If you don't care about parameters for anonymous methods, you don't have to state them.

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