Dispatcher.Invoke挂起主窗口 [英] Dispatcher.Invoke hangs main window

问题描述

我已经在主窗口中创建了新的WPF项目：

I've created new WPF project, in main window I'm doing:

public MainWindow()
{
    InitializeComponent();

    Thread Worker = new Thread(delegate(){

        this.Dispatcher.BeginInvoke(DispatcherPriority.SystemIdle, new Action(delegate
        {
            while (true)
            {
                System.Windows.MessageBox.Show("asd");

                Thread.Sleep(5000);
            }
        }));
    });

    Worker.Start();
}

问题在于这些消息在MainWindow挂起之间。我如何使其异步工作？

the problem is between those messages MainWindow hangs. How do I get it work asynchronously?

推荐答案

因为您告诉UI线程处于休眠状态，并且您没有让调度程序返回

Because you are telling the UI thread to sleep and you are not letting the dispatcher return to processing its main message loop.

尝试类似的东西

Thread CurrentLogWorker = new Thread(delegate(){
   while (true) {
      this.Dispatcher.Invoke(
                 DispatcherPriority.SystemIdle, 
                 new Action(()=>System.Windows.MessageBox.Show("asd")));
      Thread.Sleep(5000);
   }
});    

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