Gridview does not maintain row position after clicking edit

Hi. I have a gridview in a panel in an updatepanel and in a div on a webpage.  The user does not want paging in the gridview, so I have scroll controls in the panel.  When the I click Edit on the row I want to change, the gridview goes to the first row after the postback.

 I have set MaintainScrollPositionOnPostBack = True in the asp page :

<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="InvCount.aspx.vb" Inherits="BuildingMaterials.InvCount" MaintainScrollPositionOnPostback="true"  %>

and in the SelectedIndexChanged sub:

Protected Sub GridView1_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs) Handles GridView1.SelectedIndexChanged

        GridView1.SelectedRow.Controls(0).Focus()
    End Sub

What else can I do?

Thanks,
Cathy