C#中实现鼠标拖动窗体的方法

用C#实现鼠标拖动窗体，方法可能有很多，不过我想最好多还应该是直接记录鼠标的位置，进而完成操作：

private void AddList_MouseDown(object sender, MouseEventArgs e){//   Gets   the   x-coordinate   and   y-coordinate   of   a   mouse   click   based   on   the   the   client   area   of   the   form   mouse_offset = new Point(-e.X, -e.Y); }private void AddList_MouseMove(object sender, MouseEventArgs e){if (e.Button == MouseButtons.Left){//   Gets   the   position   of   the   mouse   cursor   in   screen   coordinates   Point mousePos = Control.MousePosition;//   Translates   this   Point   by   the   specified   amount.   mousePos.Offset(mouse_offset.X, mouse_offset.Y);Location = mousePos;}   }