WPF线程延迟 [英] WPF Thread Delay

问题描述

我有我称之为一个新的任务与方法

  //获取调度员UI线程
VAR uiDispatcher = Dispatcher.CurrentDispatcher;
Task.Factory.StartNew（（）=＆GT; BackgroundThreadProc（uiDispatcher））;
 

在方法 BackgroundThreadProc（）我需要几秒钟的延迟。我尝试了与DispatcherTimer和task.delay功能，但没有奏效。其工作的唯一的事情是 System.Threading.Thread.Sleep（1）但是我觉得的Thread.Sleep（）的功能是不是最好的解决方案。

这是我的功能：

 公共无效BackgroundThreadProc（分派uiDispatcher）
{
    对于（VAR I = 0; I＆LT; 100;我++）
    {
        VAR任务= Task.Delay（1000）.ContinueWith（T =＆GT;
        {
            //创建对象
            VAR动物=新的动物{名称=测试+ I};
            uiDispatcher.Invoke（新动作（（）=＆GT;登录（动物）））;
        }）;
    }
}
 

当我发现它不工作，因为DispatcherTimer是在UI线程中运行。我如何能做到的是在其他线程不是UI线程？

该函数的延迟

更新：

现在我试图与计时器：

 公共无效BackgroundThreadProc（分派uiDispatcher）
    {
        对于（VAR I = 0; I＆LT; 100;我++）
        {
            VAR _delayTimer =新System.Timers.Timer的（）;
            _delayTimer.Interval = 1000;
            //_delayTimer.Enabled = TRUE;
            _delayTimer.Elapsed + =委托
            {
                VAR动物=新的动物{名称=测试+ I};
                uiDispatcher.Invoke（新动作（（）=＆GT;登录（动物）））;
                _delayTimer.Stop（）;
            };
            _delayTimer.Start（）;
        }
    }
 

解决方案

使用 Task.Delay 来asynchrnoously引入的延迟：

  VAR任务= Task.Delay（1000）
    .ContinueWith（吨=＆GT; BackgroundThreadProc（））;
 

I have a method which I call in a new task with

// get the dispatcher for the UI thread
var uiDispatcher = Dispatcher.CurrentDispatcher;
Task.Factory.StartNew(() => BackgroundThreadProc(uiDispatcher));

In the method BackgroundThreadProc() I need a delay of few seconds. I tried it with the DispatcherTimer and the task.delay function but it didn't work. The only thing which worked was the System.Threading.Thread.Sleep(1) but I think the Thread.Sleep() function isn't the best solution.

This is my function:

public void BackgroundThreadProc(Dispatcher uiDispatcher)
{
    for (var i = 0; i < 100; i++)
    {
        var task = Task.Delay(1000).ContinueWith(t =>
        {
            // create object
            var animal = new Animal { Name = "test" + i };
            uiDispatcher.Invoke(new Action(() => log(animal)));
        });
    }
}

As I found out it didn't work because the DispatcherTimer is running in the UI thread. How I can accomplish the delay in the function which is in a other thread than the UI thread?

Update:

Now I tried it with the timer:

   public void BackgroundThreadProc(Dispatcher uiDispatcher)
    {
        for (var i = 0; i < 100; i++)
        {
            var _delayTimer = new System.Timers.Timer();
            _delayTimer.Interval = 1000;
            //_delayTimer.Enabled = true;
            _delayTimer.Elapsed += delegate
            {
                var animal = new Animal { Name = "test" + i };
                uiDispatcher.Invoke(new Action(() => log(animal)));
                _delayTimer.Stop();
            };
            _delayTimer.Start();
        }
    }

解决方案

Use Task.Delay to introduce a delay asynchrnoously:

var task = Task.Delay(1000)
    .ContinueWith(t => BackgroundThreadProc());

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