C#: Perform an Action on the Control's thread.

        /// <summary>

        /// Perform an <see cref="Action"/> on the control's thread.

        /// </summary>

        /// <param name="control"></param>

        /// <param name="action"></param>

        public static void OnThread( this Control control, Action action ) {

            if ( null == control ) {

                return;

            }

            if ( null == action ) {

                return;

            }

            if ( control.InvokeRequired ) {

                control.BeginInvoke( action );

                control.Invalidate();

            }

            else {

                action();

                control.Invalidate();

            }

        }