to display panel scroll bar according to a particular size

if (DS.Tables.Count > 0)
{

GdViewLndryRprt.DataSource = DS.Tables[0];
GdViewLndryRprt.DataBind();
if (DS.Tables[0].Rows.Count > 7)
{
//bydefault panel7 should be set as visible=false and scrollbars=none
Panel7.Visible = true;
Panel7.ScrollBars = ScrollBars.Vertical;
Panel7.Height = 250;
}
else
{
Panel7.Visible = true;
Panel7.ScrollBars = ScrollBars.Auto;
Panel7.Height = GdViewLndryRprt.Height;
}


}