How can I catch both single-click and double-click events on WPF FrameworkElement?

Question

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

private void TextBlock_MouseDown(object sender, MouseButtonEventArgs e)
{
    MessageBo         


        

Answer 1

You are simply can use MouseDown event and count click number, like this:

if (e.ChangedButton == MouseButton.Left && e.ClickCount == 2)
{
    // your code here
}

Answer 2

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;
    }

Cheers!

Answer 3

It's my working solution :)

    #region message label click --------------------------------------------------------------------------
private Timer messageLabelClickTimer = null;

private void messageLabel_MouseUp(object sender, MouseButtonEventArgs e)
{
  Debug.Print(e.ChangedButton.ToString() + " / Left:" + e.LeftButton.ToString() + "  Right:" + e.RightButton.ToString() + "  click: " + e.ClickCount.ToString());
  // in MouseUp (e.ClickCount == 2) don't work!!  Always 1 comes.
  // in MouseDown is set e.ClickCount succesfully  (but I don't know should I fire one clicked event or wait second click)

  if (e.ChangedButton == MouseButton.Left)
  {
    if (messageLabelClickTimer == null)
    {
      messageLabelClickTimer = new Timer();
      messageLabelClickTimer.Interval = 300;
      messageLabelClickTimer.Elapsed += new ElapsedEventHandler(messageLabelClickTimer_Tick);
    }

    if (! messageLabelClickTimer.Enabled)                                                 
    { // Equal: (e.ClickCount == 1)
      messageLabelClickTimer.Start();
    }
    else  
    { // Equal: (e.ClickCount == 2)
      messageLabelClickTimer.Stop();

      var player = new SoundPlayer(ExtraResource.bip_3short);               // Double clicked signal
      player.Play();
    }
  }
}

private void messageLabelClickTimer_Tick(object sender, EventArgs e)
{ // single-clicked
  messageLabelClickTimer.Stop();

  var player = new SoundPlayer(ExtraResource.bip_1short);                  // Single clicked signal
  player.Play();
}    
#endregion