[Adrees]

تفضل اخي الكريم

PHP كود :

private void Form1_Load(object sender, EventArgs e)
        {
                    foreach (Control ctl  in this.Controls)
                    {
                        if (ctl.GetType() ==typeof(MdiClient))
                        {
                            ctl.BackgroundImage = Image.FromFile("c://image.jpeg");
                        }
                    }
        }