protected   override   void   OnPaintBackground(PaintEventArgs   pe)   
{   
  if(this.Parent.BackgroundImage   ==   null   ||   this.Parent   ==null)   
  base.OnPaintBackground   (pe);   
  else   
  {   
  pe.Graphics.DrawImage(this.Parent.BackgroundImage,   0,   0,     
     new Rectangle(this.Location.X,   this.Location.Y,   this.Width,   this.Height),     
  System.Drawing.GraphicsUnit.Pixel);   
  }   
}