我怎样才能赶上WPF FrameworkElement的单单击和双击事件？ [英] How can I catch both single-click and double-click events on WPF FrameworkElement?

问题描述

我能赶上一个单点击在这样一个TextBlock：

I can catch a single-click on a TextBlock like this:

private void TextBlock_MouseDown(object sender, MouseButtonEventArgs e)
{
    MessageBox.Show("you single-clicked");
}

我能赶上一个双击上TextBlock的是这样的：

I can catch a double-click on a TextBlock like this:

private void TextBlock_MouseDown(object sender, MouseButtonEventArgs e)
{
    if (e.LeftButton == MouseButtonState.Pressed)
    {
        if (e.ClickCount == 2)
        {
            MessageBox.Show("you double-clicked");
        }
    }
}

但是如何我赶上他们都在一个单一的TextBlock和两个？

推荐答案

您需要后触发事件点击序列已经结束...当是什么？我建议使用一个计时器。 MouseDown事件将重新设置和提高点击次数。当计时器间隔结束它会调用评估点击计数

You need to fire the event after the click sequence is over... when is that? I suggest using a timer. The MouseDown event would reset it and increase the click count. When timer interval elapses it makes the call to evaluate the click count.

    private System.Timers.Timer ClickTimer;
    private int ClickCounter;

    public MyView()
    {
        ClickTimer = new Timer(300);
        ClickTimer.Elapsed += new ElapsedEventHandler(EvaluateClicks);
        InitializeComponent();
    }

    private void TextBlock_MouseDown(object sender, MouseButtonEventArgs e)
    {
        ClickTimer.Stop();
        ClickCounter++;
        ClickTimer.Start();
    }

    private void EvaluateClicks(object source, ElapsedEventArgs e)
    {
        ClickTimer.Stop();
        // Evaluate ClickCounter here
        ClickCounter = 0;
    }

干杯！

Cheers!

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