问题描述
我一直在做一些工作，最近的一个项目，使大量使用的事件。其中之一，我需要做的是异步调用一个多播委托多个事件处理程序的事。我以为招将调用BeginInvoke从GetInvocationList每个项目，但好像BeginInvoke的不存在有它出现。
I've been doing some work lately on a project that makes extensive use of events. One of the things that I need to do is asynchronously call multiple event handlers on a multicast delegate. I thought the trick would be to call BeginInvoke on each item from GetInvocationList, but it appears as though BeginInvoke doesn't exist there.
有没有办法做到这一点还是需要开始使用ThreadPool.QueueUserWorkItem和排序的推出自己的解决办法呀？
Is there a way to do this or do I need to start using ThreadPool.QueueUserWorkItem and sort of roll my own solution that way?
推荐答案
GetInvocationList 只返回类型的数组代表不知道适当的签名。但是，您可以将每个返回的值转换为特定的委托类型：
GetInvocationList just returns an array of type Delegate which doesn't know the appropriate signature. However, you can cast each returned value to your specific delegate type:
foreach (MyDelegate action in multicast.GetInvocationList())
{
action.BeginInvoke(...);
}
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