Question

How do I repetitively perform an action when the mouse left button is pressed and held down in WPF?

The following event handler for the UIElement.PreviewMouseLeftButtonDown event does not get the job done:

private void BaseButtonRight_MouseLeftButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
        {
           // keep performing action while mouse left button is pressed.  
           // Checking e.ButtonState works only for one click

        }

Execution does not even get into the while loop and handler is called when the left mouse button is released!

Answer 1

Why not use a RepeatButton?

http://msdn.microsoft.com/en-us/library/ms746649(v=vs.85).aspx