Grid Background colour

hi,

I have created a gread in a container with the help of sample example in SDK. I want to change the backgroung colour. How can i do this?

I tried changing colour in draw function,

void CAknExGridContainerAsSelection::Draw( const TRect& aRect ) const
    {
        CWindowGc& gc = SystemGc();
    gc.SetPenStyle( CGraphicsContext::ENullPen );
    gc.SetBrushColor( KRgbBlue );
    gc.SetBrushStyle( CGraphicsContext::ESolidBrush );
    gc.DrawRect( aRect );
    }


But this is not working.

Please help me. Its little urgent.
Thank you.
--
Dipti