Координаты контролов

 
//первый иф - это если кнопка сверху или снизу, 2 -ой соотвественно если кнопка слева 
//или справа
Point j = new Point();
            if ((sender as Button).Location.X == button16.Location.X && 
Math.Abs((sender as Button).Location.Y - button16.Location.Y) <= button16.Height+3)
            {
                
                j.X = button16.Location.X;
                j.Y = button16.Location.Y;
button16.Location = new Point((sender as Button).Location.X, (sender as Button).Location.Y);
                (sender as Button).Location = new Point(j.X,j.Y);
                
            }
 
            else
            if ((sender as Button).Location.Y == button16.Location.Y && 
Math.Abs((sender as Button).Location.X - button16.Location.X) <= button16.Width+3)
            {
 
                j.X = button16.Location.X;
                j.Y = button16.Location.Y;
 button16.Location = new Point((sender as Button).Location.X,(sender as Button).Location.Y);
                (sender as Button).Location = new Point(354, j.Y);
                //Thread.Sleep(2000);
            
            }

        private void button1_Click(object sender, EventArgs e)
        {
            Point buf = button1.Location;
            button16.Location = button2.Location;
            button2.Location = buf;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Point buf = button1.Location;
            button16.Location = button2.Location;
            button2.Location = buf;
        }