c# - 使用定时器停止另一个定时器

Question

我是 C# 的业余爱好者，我正在做一个项目。

我使用了 3 个计时器，其中一个是 20 秒的圆形计时器。我希望在 20 秒过去后，其他 2 个计时器必须停止

我无法从循环计时器访问/调用其他 2 个计时器。这是代码:

public void Window_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{            
    DispatcherTimer tgtTimer = new DispatcherTimer();
    tgtTimer.Tick += new EventHandler(tgtTimer_tick);
    tgtTimer.Interval = new TimeSpan(0, 0, 3);
    tgtTimer.Start();


    DispatcherTimer txbTimer2 = new DispatcherTimer();
    txbTimer2.Tick += new EventHandler(txbTimer2_tick);
    txbTimer2.Interval = new TimeSpan(0, 0, 0, 4, 000);
    txbTimer2.Start();

    DispatcherTimer rt = new DispatcherTimer();
    rt.Tick += new EventHandler(rt_tick);
    rt.Interval = new TimeSpan(0, 0, 1);
    rt.Start();
}

private void tgtTimer_tick(object sender, EventArgs e)
{ //some code }

private void txbTimer2_tick(object sender, EventArgs e)
{ //some code }

int i = 20 //for the 20 sec round timer

private void rt_tick(object sender, EventArgs e) //round timer
{
    if(i!=0)
    { 
        i--;
        txbTime.Text = "";
        txbTime.Text = Convert.ToString(i) + "s";
    }
    else 
    {
        this.Opacity = 0.3;  

        //tgtTimer and txbTimer2 can't be accessed from here          
    }             
}            

我应该如何停止这 2 个计时器？

Answer 1

您应该尝试在 mouseleftbutton 按下事件之外添加计时器，如下所示:

        DispatcherTimer tgtTimer = new DispatcherTimer();
        DispatcherTimer txbTimer2 = new DispatcherTimer();
        DispatcherTimer rt = new DispatcherTimer();


public void Window_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
    {            
        tgtTimer.Tick += new EventHandler(tgtTimer_tick);
        tgtTimer.Interval = new TimeSpan(0, 0, 3);
        tgtTimer.Start();



        txbTimer2.Tick += new EventHandler(txbTimer2_tick);
        txbTimer2.Interval = new TimeSpan(0, 0, 0, 4, 000);
        txbTimer2.Start();


        rt.Tick += new EventHandler(rt_tick);
        rt.Interval = new TimeSpan(0, 0, 1);
        rt.Start();
    }