如何在事件中启动任务并退出方法 [英] How to Initiate task and exit the method in an event

问题描述

嗨朋友们，

我订阅了一个活动

Hi friends,
I am subscribed to an event

public void Call_Comes(object sender, EventArgs e)
{
     //Code here
}

我不想在这个活动中执行任务，因为这需要很长时间......

我想要的是收集信息和启动任务，退出活动...

我怎样才能实现这一目标？我在事件中使用了线程..但似乎事件正在等待线程完成....

任何人都可以帮助我吗??

I don't want to do the tasks to be carried out inside this event, as it will take long time...
What I want is to collect the information and initiate the task, and exit the event...
How can I achieve this ?? I have used threading inside event.. But it seems that event is waiting for the thread to finish....
Can anybody help me ??

推荐答案

有很多方法可以将事件处理程序解耦到另一个线程上;



其中一个可能对你有用;

There are many ways to decouple the event handler onto a different thread;

One of these might work for you;

// Option 1
public void Call_Comes(object sender, EventArgs e) {
    Task.Factory.StartNew(() => HandleEvent(sender, e));
}

// Option 2
public void Call_Comes(object sender, EventArgs e) {
    ThreadPool.QueueUserWorkItem(x => HandleEvent(sender, e));
}

// Option 3
public void Call_Comes(object sender, EventArgs e) {
    var worker = new BackgroundWorker();
    worker.DoWork += HandleEvent;
    worker.RunWorkerAsync();
}

// Option 4
public void Call_Comes(object sender, EventArgs e)
{
    var thread = new Thread(() => HandleEvent(sender, e));
    thread.Start();
}

private void HandleEvent(object sender, EventArgs e) {
    // Your stuff
}

请注意，如果您在其他线程上运行它，您仍需要处理任何异常。你不会在非主线程上没有被禁止的例外。



希望这会有所帮助，

Fredrik

Note that if you do run it on a different thread you still need to handle any exceptions. You don't wan't uncaught exceptions on non-main threads.

Hope this helps,
Fredrik

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