private void RadForm1_Load(object sender, EventArgs e)
        {
            RadScrollablePanel panel = new RadScrollablePanel() { Dock = DockStyle.Fill };
            panel.BackColor = Color.Yellow;
            this.Controls.Add(panel);
            for (int i = 0; i < 5; i++)
            {
                panel.Controls.Add(new UserControl1() { Dock = DockStyle.Right, BackColor = Color.Red });
              //  panel.Controls.Add(new UserControl1() { Dock = DockStyle.Bottom, BackColor = Color.Red });

            }
        }