WPF探测点击事件没有完成延迟的主过程

Question

我需要从一个点击事件检测过程已完成，而不延迟主要WPF过程..

我不想

public void click_event(object sender,routedeventargs) 
{ 
     <launch a bunch of threads> 
     while(<threads.are alive>); 


     <code for what i want to do after threads are done> 
} 

public void threadtask() 
{} 

什么

什么，我只是做了

public void click_event() 
    { 
     foreach(<thread>) 
      <give thread task and start() each> 
    } 
    } 

但是当线程，这将无法检测完成..需要帮助在这里。谢谢。

Answer 1

你问了两个不同的东西。你希望主线程不被阻塞，但是当其他线程完成时（你必须等待），你想做一些事情。考虑从一个新线程开始线程，然后让其他线程完成工作。事情是这样的：

public void click_event() 
{ 
    <start new thread> 
     <foreach(thread in threads)> 
      <do work> 
     <join threads> 
     <do your work here> 
} 

因此，所有的工作都是在不同的线程，即使是工作，你想以后做。鉴于此，您是否需要多个工作线程？

Answer 2

Check out this article

public partial class MainWindow : Window 
{ 
    public MainWindow() 
    { 
     InitializeComponent(); 
     this.ClickMe.Click += new RoutedEventHandler(ClickMe_Click); 
    } 

    void ClickMe_Click(object sender, RoutedEventArgs e) 
    { 
     BackgroundWorker bw = new BackgroundWorker(); 
     bw.DoWork += (workSender, workE) => 
     { 
      string argument = (string)workE.Argument; 
      // argument == "Some data" 
      System.Threading.Thread.Sleep(2000); 
     }; 

     bw.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bw_RunWorkerCompleted); 
     bw.RunWorkerAsync("Some data"); 
    } 

    void bw_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e) 
    { 
     this.ResultsTextBlock.Text = "I'm done"; 
    } 

}