ToolStripControlHost 's image dose not show

i used ToolStripControlHost . but it 's image dose not show.

 public class ContexMenuStrip2 : ContextMenuStrip
    {


        protected override void OnPaint(PaintEventArgs e)
        {
            for (int i = 0; i < this.Items.Count; i++)
            {

                try
                {
                    if ((this.Items[i].Image != null) && (this.Items[i].GetType().BaseType == typeof(System.Windows.Forms.ToolStripControlHost)))
                    {
                        float x = 150;
                        float y = this.Items[i].Bounds.Y + ((this.Items[i].Bounds.Height / 2) - 20);
                        e.Graphics.DrawImage(Items[i].Image, x, y);
                    }
                }
                catch { }
            }
            base.OnPaint(e);
        }
    }

    private void Form1_Load(object sender, EventArgs e)
    {

        ContexMenuStrip2 Menu = new ContexMenuStrip2();


        Button btn = new Button();
        btn.BackColor = Color.Pink;


        ToolStripControlHost backcolorItem = new ToolStripControlHost(btn);
        backcolorItem.BackgroundImageLayout = ImageLayout.None;
        backcolorItem.Image = Image.FromFile(Application.StartupPath + "\\30.png");
        backcolorItem.Width = 120;


        backcolorItem.Name = "BgColor";
        Menu.Items.Add(backcolorItem);


        this.ContextMenuStrip = Menu;
    }

i want s.th like this :

but it is like below now :