Question

I’m trying to find what mouse event I should use to place a Pushpin on a single click. I’ve tried using the MouseUp event but that event fires even when I just click-and-drag. Is there a way to have MouseUp fire only on clicks and not click-and-drags? Or is there another Mouse event that I should be looking at?

Clarification: I am working with the Bing Maps WPF control, not AJAX or Silverlight.

Answer 1

I’ve managed to hack this together by handling the MouseLeftButtonDown and MouseLeftButtonUp events.

private void map_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
    clickTimer.Start();
}

private void map_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
    clickTimer.Stop();

    if (clickTimer.ElapsedMilliseconds < arbitraryConstant) // I find that 100 works well
    {
        Point mousePosition = e.GetPosition(this);
        Location pinLocation = map.ViewportPointToLocation(mousePosition);

        targetPin.Location = pinLocation;

        map.Children.Add(targetPin);
    }

    clickTimer.Reset();
}

A Stopwatch object records how much time elapses between clicking down and releasing the click. This elapsed time is evaluated and determines whether or not it is a “click”.

Warning: Remember to call clickTimer.Reset() or your Stopwatch object will continue to record clicks incrementally and only your first click (if you do not click-drag first) will trigger the if block.

Warning: Do not set e.Handled=true. This will prevent click-drag events and your map will not pan properly.