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

My suggestion, implemented in a UserControl by simply using a Task:

private int _clickCount = 0;
protected override void OnPreviewMouseDown(MouseButtonEventArgs e)
{
    _clickCount = e.ClickCount;
}

protected override async void OnPreviewMouseUp(MouseButtonEventArgs e)
{
    if (_clickCount > 1)
    {
        //apparently a second mouse down event has fired => this must be the second mouse up event
        //no need to start another task
        //the first mouse up event will be handled after the task below
        return; 
    }

    await Task.Delay(500);

    if (_clickCount == 1)
    {
        //single click
    }
    else
    {
        //double (or more) click
    }
}

The drawback of all these solutions is, of course, that there will be a delay before actually responding to the user's action.