Gridview with Paging and Checkboxes

<asp:GridView ID="grdSearchResults" runat="server"  DataSourceID="dsSearchResults" AutoGenerateColumns="False"
 AllowPaging="True"  PageSize="5" Width="324px"  DataKeyNames="TECHID"
 OnPageIndexChanging="grdSearchResults_PageIndexChanging">
    <Columns>
        <asp:TemplateField HeaderText="Select">
              <ItemTemplate>
                   <asp:CheckBox ID="CheckBox1"  runat="server" />
              </ItemTemplate>
        </asp:TemplateField>
        <asp:BoundField DataField="TECHID" HeaderText="Tech ID"/>
        <asp:BoundField DataField="NAME" HeaderText="Name"  />
        <asp:BoundField DataField="Address1" HeaderText="Office Address" />
        <asp:BoundField DataField="PHONE1" HeaderText="Primary Phone" />
        <asp:BoundField DataField="TECHSTAT" HeaderText="Status"  />          
    </Columns>
    <SelectedRowStyle BackColor="#FFFFC0" />
    <AlternatingRowStyle BackColor="#E0E0E0" />
</asp:GridView>
<asp:SqlDataSource ID="dsSearchResults" runat="server"
ConnectionString="<%$ ConnectionStrings:MidwareConnectionString %>"
 SelectCommand="select tc.TECHID,tc.[NAME],tc.Address1, tc.PHONE1,tc.TECHSTAT from
                     (select t.TECHID,t.[NAME],t.Address1, t.PHONE1,t.TECHSTAT,c.CALLNBR,c.SRVTYPE,c.State from cms..svc00100 t
                             left join cms..svc00200 c
                                on t.TECHID = c.TECHID)tc
                left join
                      (select pc.SvcCallNumber from midware..ProjectHeader ph
                             left join midware..ProjectSiteList ps
                               on ps.SiteList2Project = ph.objectid
                             left join midware..ProjectSvcCallList pc
                               on pc.SvcCall2ProjectSite = ps.objectid)p
                on p.SvcCallNumber = tc.CALLNBR">
   
</asp:SqlDataSource>

Imports System
Imports System.Data
Imports System.Configuration
Imports System.Web
Imports System.Web.Security
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Web.UI.WebControls.WebParts
Imports System.Web.UI.HtmlControls
Imports System.Data.SqlClient
Imports System.Collections

Partial Class Members_TechSearchResults
    Inherits System.Web.UI.UserControl

    Dim strSelect As String = "select tc.TECHID,tc.[NAME],tc.Address1, tc.PHONE1,tc.TECHSTAT " _
                               & " from " _
                                    & " (select t.TECHID,t.[NAME],t.Address1, t.PHONE1,t.TECHSTAT,c.CALLNBR,c.SRVTYPE,c.State from cms..svc00100 t " _
                                    & "     left join cms..svc00200 c " _
                                    & "           on t.TECHID = c.TECHID)tc " _
                               & " left join " _
                                    & "  (select pc.SvcCallNumber from midware..ProjectHeader ph " _
                                    & "     left join midware..ProjectSiteList ps " _
                                    & "               on ps.SiteList2Project = ph.objectid " _
                                    & "     left join midware..ProjectSvcCallList pc " _
                                    & "             on pc.SvcCall2ProjectSite = ps.objectid)p " _
                               & " on p.SvcCallNumber = tc.CALLNBR"


    Private Const CHECKED_ITEMS As String = "CheckedItems"


    Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
        If Not Page.IsPostBack Then
            BindData()
        End If
    End Sub

    Private Sub BindData()
        dsSearchResults.SelectCommand = strSelect
        grdSearchResults.DataBind()
    End Sub


    Protected Sub grdSearchResults_PageIndexChanging(ByVal sender As Object, ByVal e As GridViewPageEventArgs)
        ' Put old values in a session
        RememberOldValues()

        grdSearchResults.PageIndex = e.NewPageIndex
        BindData()

        RePopulateValues()
    End Sub

    Private Sub RePopulateValues()
        Dim categoryIDList As ArrayList = DirectCast(Session(CHECKED_ITEMS), ArrayList)

        If categoryIDList IsNot Nothing AndAlso categoryIDList.Count > 0 Then
            For Each row As GridViewRow In grdSearchResults.Rows
                Dim rowValue As String = grdSearchResults.DataKeys(row.RowIndex).Value

                If categoryIDList.Contains(rowValue) Then
                    Dim myCheckBox As CheckBox = DirectCast(row.FindControl("CheckBox1"), CheckBox)
                    myCheckBox.Checked = True
                End If
            Next
        End If

    End Sub

    Private Sub RememberOldValues()
        Dim categoryIDList As New ArrayList()
        Dim RowValue As String = ""
        For Each row As GridViewRow In grdSearchResults.Rows
            RowValue = grdSearchResults.DataKeys(row.RowIndex).Value

            Dim result As Boolean = DirectCast(row.FindControl("CheckBox1"), CheckBox).Checked

            ' Check in the Session
            If Session(CHECKED_ITEMS) IsNot Nothing Then
                categoryIDList = DirectCast(Session(CHECKED_ITEMS), ArrayList)
            End If

            If result Then
                If Not categoryIDList.Contains(RowValue) Then
                    categoryIDList.Add(RowValue)
                End If
            Else
                categoryIDList.Remove(RowValue)

            End If
        Next

        If categoryIDList IsNot Nothing AndAlso categoryIDList.Count > 0 Then
            Session(CHECKED_ITEMS) = categoryIDList
        End If
    End Sub
End Class

Thats not working..same behavior...

Its strange...when you run the code...the very last thing I can see if the code actually tell the checkboxes to recheck based on whats stored in session...
then there is a flicker...and the checkboxes dissapear...its almost like there is a postback..but im catching it or something..I wonder could using this as a user control be the problem..i really have no idea...but this is crazy

That is a data grid solution....

I am using visual studio 2005 and attempting a solution using the asp.net 2.0 GRIDVIEW...

Any other ideas?

could the fact that this is a user control on a page within a master page be any factor in the extra flicker at the end that omits the check box

Well I havent had much feedback on this lately and moved on to something else...
Now I am back at square one with this issue:

Basically I am trying to store the values in session...what was checked...in an arralylist..
so when a user clicks from page to page what was checked is still there.

is there a better way to do this...and if not
how do u get this to work...I cant seem to get it work even using codeproject ect examples.

neglected question??