Рисование

[Alex2012]

Есть форма на которой по нажатию на нее создается picturebox c нужным рисунком как можно например по нажатию на кнопку нарисовать между ними линию

private void Form1_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            if (comboBox1.SelectedIndex == 0)
            {
                MyPictureBox MyPicture;
                List<Control> ListCont = new List<Control>();
                MyPicture = new MyPictureBox();
                MyPicture.Location = new Point(e.X, e.Y);
                MyPicture.SizeMode = PictureBoxSizeMode.AutoSize;
                MyPicture.Image = WindowsFormsApplication2.Properties.Resources.a;
                this.Controls.Add(MyPicture);
                ListCont.Add(MyPicture);
               
            }
            if (comboBox1.SelectedIndex == 1)
            {
                MyPictureBox MyPicture;
                List<Control> ListCont = new List<Control>();
                MyPicture = new MyPictureBox();
                MyPicture.Location = new Point(e.X, e.Y);
                MyPicture.SizeMode = PictureBoxSizeMode.AutoSize;
                MyPicture.Image = WindowsFormsApplication2.Properties.Resources.a;
                this.Controls.Add(MyPicture);
                ListCont.Add(MyPicture);
            }
        }

public class MyPictureBox : System.Windows.Forms.PictureBox
    {
        Point DownPoint;
        bool IsDragMode;
        Image image1 = WindowsFormsApplication2.Properties.Resources.myimage;
        protected override void OnMouseDown(MouseEventArgs e)
        {
            DownPoint = e.Location;
            IsDragMode = true;
            base.OnMouseDown(e);
        }
        protected override void OnMouseUp(MouseEventArgs mevent)
        {
            IsDragMode = false;
            base.OnMouseUp(mevent);
        }
        protected override void OnMouseMove(MouseEventArgs mevent)
        {
            if (IsDragMode)
            {
                Point p = mevent.Location;
                Point dp = new Point(p.X - DownPoint.X, p.Y - DownPoint.Y);
                Location = new Point(Location.X + dp.X, Location.Y + dp.Y);
            }
            base.OnMouseMove(mevent);
        }
        protected override void OnDoubleClick(EventArgs e)
        {
            Visible = false;
            base.OnDoubleClick(e);
        } 
    }

[Alex2012]

Вопрос решен!!!