Visual Basic.NET - Pintar fila Gridview en una aplicacion web en vb y asp

Dim row = GridView2.SelectedRow

Dim totalfilas As Integer = GridView2.Rows.Count

While totalfilas >= GridView2.Rows.Count

	If CInt(row.Cells(6).Text) > 0 Then ' la celda 6 contiene campo a comparar,, si campo> 0 quiero pintar la fila

		row.BackColor = Drawing.Color.Red

	End If

	totalfilas = totalfilas - 1

End While