Description: This Code Snippet show how to mode a form that does not have a FormBorderStyle, or make it possible to move form without having to drag mouse on the topbar of a form.

this Excample uses a GroupPanel. You need to modify this to a component on your form.

Link: http://www.codekeep.net/snippets/f1f2b430-381b-4b6b-ad7c-1bb98416bc15.aspx

            aiGroupPanel1.MouseDown += new MouseEventHandler(MouseDown);
            aiGroupPanel1.MouseMove += new MouseEventHandler(MouseMove);
            aiGroupPanel1.MouseUp += new MouseEventHandler(MouseUp);

        }

        void MouseUp(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                isMouseDown = false;
            }
        }
        void MouseMove(object sender, MouseEventArgs e)
        {
            if (isMouseDown)
            {
                Point mousePos = Control.MousePosition;
                mousePos.Offset(mouseOffset.X, mouseOffset.Y);
                Location = mousePos;
            }

        }
        void MouseDown(object sender, MouseEventArgs e)
        {

            int xOffset;
            int yOffset;
            if (e.Button == MouseButtons.Left)
            {
                xOffset = -e.X - SystemInformation.FrameBorderSize.Width;
                yOffset = -e.Y -
            SystemInformation.CaptionHeight - SystemInformation.FrameBorderSize.Height;

                mouseOffset = new Point(xOffset, yOffset);
                isMouseDown = true;
            }
        }