class ListViewNF : System.Windows.Forms.ListView{   public ListViewNF()   {     // Activate double buffering     this.SetStyle(ControlStyles.OptimizedDoubleBuffer | ControlStyles.AllPaintingInWmPaint, true);     // Enable the OnNotifyMessage event so we get a chance to filter out      // Windows messages before they get to the form‘s WndProc     this.SetStyle(ControlStyles.EnableNotifyMessage, true);   }   protected override void OnNotifyMessage(Message m)   {     //Filter out the WM_ERASEBKGND message     if (m.Msg != 0x14)     {       base.OnNotifyMessage(m);     }   }}