how to maintain selected?

[mac]

hi stuck on something with radgrid and ajax panel
I have a radgrid with 20 columns(15 hidden), one datasource, one textbox, two buttons(search and continue), one table with lierals for the 15 hidden columns outside the grid.
Scenario: Radgrid and table are wrapped in an ajaxpanel. User enters search criteria in textbox 1, radgrid populates based on criteria. User uses COmmandName 'Select' to select row. SelectedIndexChanged grabs values of selected row and populates literals. Very nice. User presses continue and goes to next page. if user uses back button, all data is then missing! This is definitely due to my use of the ajaxpanel. is there a way to keep the page in its selected state and use the ajax?
My designer data is simplified significantly but the idea is there.
thanks
mac

    Protected Sub RadGrid1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles RadGrid1.SelectedIndexChanged

        For Each item As GridDataItem In RadGrid1.MasterTableView.GetItems(New GridItemType() {GridItemType.Item, GridItemType.AlternatingItem})
            Dim dataitem As GridDataItem = DirectCast(item, GridDataItem)

            If dataitem.Selected Then
                'Access the data in the row using the ColumnUniqueName
                EMP_IDlit.Text = dataitem("EMP_ID").Text
                EMPFirstNamelit.Text = dataitem("EMPFirstName").Text
                EMPLastNamelit.Text = dataitem("EMPLastName").Text
                EMPPoslit.Text = dataitem("EMPPos").Text
                PosDescriptionlit.Text = dataitem("PosDescription").Text
                PosTypelit.Text = dataitem("PosType").Text
                HomePoslit.Text = dataitem("HomePos").Text
                Emp_Statuslit.Text = dataitem("Emp_Status").Text
                Classnlit.Text = dataitem("Classn").Text
                CostCentrelit.Text = dataitem("CostCentre").Text
                site_prelit.Text = dataitem("site_pre").Text
                sitelit.Text = dataitem("site").Text
                Affiliationlit.Text = dataitem("Affiliation").Text
                std_hourslit.Text = dataitem("std_hours").Text
                Documentlit.Text = dataitem("Document").Text
                Departmentlit.Text = dataitem("Department").Text
                homesitelit.text = dataitem("homesite").Text
                infopanel.visible = True

            End If
        Next


        EmpPos = RadGrid1.SelectedValues("EmpPos")
        Empid = RadGrid1.SelectedValues("Emp_ID")
        SelectedID.Text = EmpPos & "|" & Empid & "|" & JDC

    End Sub

Design is along these lines

    <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox><asp:Button ID="Button1"
        runat="server" Text="Name or Pos#" />
    <telerik:RadAjaxPanel ID="pnl" runat="server">
    <telerik:RadGrid ID="RadGrid1"     runat="server" AutoGenerateColumns="False">
</telerik:RadGrid>
<datasource>
<asp:panel id="infoPanel" runat="server">
table of literal ctrls
<asp:button id="Continue" runat=server />
</asp:panel>
</telerik:ajaxPanel>

[Princy]

Hello Mac,

RadGrid tends to lose its selection when the current page changes and it can happen even if you use Ajax settings. Inorder to persist the selection of items across pages in a grid, you can store the key values for the selected rows in a Session variable or ViewState. Then in the pre-render event of the grid, you can loop through the rows of the grid and compare their key values to the values saved in the session variable and set the matched rows as selected. Refer to the following help document to find out how to implement this scenario.
Persisting the selected rows server-side on sorting/paging/filtering/grouping

Princy.

[Sai Krishna]

Hi Princy,

Thanks for sharing the article, it was nice.
however in my case i am using client to select the row,

 <ClientSettings EnablePostBackOnRowClick="True">

                        <Selecting AllowRowSelect="true" />
 </ClientSettings>

in this case it is not working for me.

please help me out

Regards,
Sai