Simple implementation - just wrap the ScrollingGrid control around your existing DataGrid control:

<avg:ScrollingGrid ID=sg1 runat=server Width=95% Height=190 HeaderWidthReduction=17>

 <asp:DataGrid runat=server ID=Grid2 GridLines=None BorderWidth=0 CellPadding=5 CellSpacing=1
  BorderColor=yellow AutoGenerateColumns=True AllowSorting=True AllowPaging=True PageSize=35
  OnPageIndexChanged=Grid2_PageIndexChanged OnSortCommand=Grid2_Sort>
    <HeaderStyle BackColor=red ForeColor=white Font-Bold=True />
    <ItemStyle BackColor=#fefefe />
    <AlternatingItemStyle BackColor=#eeeeee />
    <PagerStyle BackColor=silver ForeColor=White Mode=NumericPages />
 </asp:DataGrid>

</avg:ScrollingGrid>