Button Long Short Click EventHandler

        private DateTime ClickTime;
        private void button_MouseDown(object sender, MouseEventArgs e)
        {
            ClickTime = DateTime.Now;
        }
        private void button_MouseUp(object sender, MouseEventArgs e)
        {
            TimeSpan Length = DateTime.Now - ClickTime;
            if (Length.TotalSeconds > 0.5)
            {
                if (LongClick != null)
                {
                    LongClick(Length, new EventArgs());
                }
            }
            else
            {
                if (ShortClick != null)
                {
                    ShortClick(Length, new EventArgs());
                }
            }
        }

        public event EventHandler LongClick;
        public event EventHandler ShortClick;