Custom Paging in Child (Inner) Nested Repeaters - asp.net

Question

I am using nested repeaters with Dataset (not using Datatable) to retrieve information by passing parameters. So far I have bind the two repeaters clearly and everything is working fine.
Here the list of messages created by each user datawise(parameter passed) will be displayed, and there could be more than 50 messages created by each user daily. So now I want to do custom paging for each user.
But I am unable to proceed further, as the next, previous, back, first links are placed inside the child repeaters footer template and I couldn't access these links even by findcontrol method.
Example:
User1
No Msg Code
1 abcd Cl-6
2 some Cl-4
3 swedf Cl-3
4 sddf Cl-1
1,2,3,4,5 (Paging)
User2
No Msg Code
1 dgfv Cl-96
2 abcd Cl-4
3 sjuc Cl-31
4 liot Cl-1
1,2,3,4,5 (Paging)
In this ways goes for every user:
Public Sub CreateNestedRepeater()
Dim strSql_1 As String, strsql_2 As String
Dim strCon_1 As New SqlConnection
Dim strCon_2 As New SqlConnection
Dim ds As New DataSet()
frmDate = AMS.convertmmddyy(txtFromDate.Text)
toDate = AMS.convertmmddyy(txtToDate.Text)
strCon_1 = New SqlConnection(ConfigurationManager.ConnectionStrings("connectionString").ConnectionString)
strSql_1 = "select User_Login, User_Id from V_mst_UserMaster Where User_Flag = 1 and User_Type='CO'"
Dim daCust As New SqlDataAdapter(strSql_1, strCon_1)
daCust.Fill(ds, "RptCoord_Name")
WhereClause1 = "where MsgHdr_Id NOT IN (Select a.MsgHdr_Id from V_AMS_GetSentMsg as a Join V_AMS_GetSentMsg as b " _
& "on a.MsgHdr_Id = b.MsgHdr_PrevMsgId) and MsgHdr_Date >= '" & frmDate & "' and MsgHdr_Date <= '" & toDate & _
"'AND MsgHdr_MsgFlag='I' and MsgHdr_AckReq <> 'N'"
OrderBy = "order by MsgHdr_Date asc"
strCon_2 = New SqlConnection(ConfigurationManager.ConnectionStrings("conn_Ind_AKK_TRAN").ConnectionString)
strsql_2 = "select User_Login,MsgHdr_Date, Client_Code, MsgHdr_RefNo, MsgType_Name, MsgHdr_Subject " _
& " from V_AMS_GetSentMsg " & WhereClause1 & OrderBy
Dim daOrders As New SqlDataAdapter(strsql_2, strCon_2)
daOrders.Fill(ds, "RptCd_Record")
Dim rel As New DataRelation("CrdRelation", ds.Tables("RptCoord_Name").Columns("User_Login"), ds.Tables("RptCd_Record").Columns("User_Login"), False)
ds.Relations.Add(rel)
rel.Nested = True
Rep1.DataSource = ds.Tables("RptCoord_Name").DefaultView
Rep1.DataBind()
strCon_1.Close()
strCon_2.Close()
End Sub
Protected Sub Rep1_ItemCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.RepeaterCommandEventArgs) Handles Rep1.ItemCommand
If e.Item.ItemType = ListItemType.Item OrElse e.Item.ItemType = ListItemType.AlternatingItem Then
DirectCast(e.Item.FindControl("Rep2"), Repeater).DataSource = DirectCast(e.Item.DataItem, DataRowView).CreateChildView("CrdRelation")
DirectCast(e.Item.FindControl("Rep2"), Repeater).DataBind()
End If
End Sub
Protected Sub Pagging(ByVal index As Integer)
Dim PDS As New PagedDataSource
PDS.DataSource = ds.Tables("RptCoord_Name").DefaultView
PDS.CurrentPageIndex = index
PDS.AllowPaging = True
PDS.PageSize = 4
Dim rep2 As Repeater = CType(e
rep2.DataSource = PDS
Rep2.DataBind()
Dim ddl As DropDownList = DirectCast(rep2.Controls(rep2.Controls.Count - 1).FindControl("PageCount"), DropDownList)
If ddl IsNot Nothing Then
For i As Integer = 1 To PDS.PageCount - 1
ddl.Items.Add(i.ToString())
Next
End If
End Sub
Public Sub PageIndex(ByVal sender As Object, ByVal e As EventArgs)
Dim ddl As DropDownList = DirectCast(rep2.Controls(rep2.Controls.Count - 1).FindControl("PageCount"), DropDownList)
Pagging(Integer.Parse(ddl.SelectedItem.Text) - 1)
End Sub
XML:
<asp:Repeater id="Rep1" runat="server" OnItemCommand="Rep1_ItemCommand" EnableViewState = "false" >
<ItemTemplate>
<table width="100%" border="0.8" cellpadding="0" cellspacing="0" CssClass="bodytext" >
<tr><td align="center" class="RepHeader" >
Incoming Messages - Pending Ack for
<%#getUser(DataBinder.Eval(Container.DataItem, "User_Login"))%> from <%= txtFromDate.Text %>
to <%=txtToDate.Text%>
<%-- OnItemDataBound="Rep2_ItemDataBound" --%>
<asp:Repeater id="Rep2" runat="server" datasource='<%#(Container.DataItem).Row.GetChildRows("CrdRelation") %>' >
<HeaderTemplate>
<table border="1" width="100%" >
<tr class="RepHeader" >
<td>Msg Date</td><td>CL Code</td><td>INCRefNo</td><td>Contents</td><td>Subject</td></tr></HeaderTemplate><ItemTemplate>
<tr class="RrpList">
<td><%#getdate(CType(Container.DataItem, System.Data.DataRow)("MsgHdr_Date"))%> </td>
<td><%#CType(Container.DataItem, System.Data.DataRow)("Client_Code")%> </td>
<td><asp:LinkButton ID="lnkRef" runat="server"></asp:LinkButton>
<a id="hrefRefNo" runat="server" href="#" class="Link" >
<%#CType(Container.DataItem, System.Data.DataRow)("MsgHdr_RefNo")%></a></td>
<td><%#CType(Container.DataItem, System.Data.DataRow)("MsgType_Name")%> </td>
<td><%#CType(Container.DataItem, System.Data.DataRow)("MsgHdr_Subject")%> </td>
</tr>
</ItemTemplate>
<FooterTemplate>
<%--Starts Here - (Paging for Pending Nested Repeaters) --%>
<tr align="center" class = "RepHeader">
<td colspan="5">
<asp:LinkButton ID="lnkFirst" runat="server" ForeColor="Black" Text="First" >
</asp:LinkButton>
<asp:LinkButton ID="lnkPrevious" runat="server" ForeColor="Black" Text="Previous" >
</asp:LinkButton> Now Showing Page
<asp:DropDownList ID="ddlpageNumbers" runat="server" AutoPostBack="true" >
</asp:DropDownList> of <asp:Label ID="lblTotalPages" runat="server"> </asp:Label>
Pages.
<asp:LinkButton ID="lnkNext" runat="server" ForeColor="Black" Text="Next" >
</asp:LinkButton>
<asp:LinkButton ID="lnkLast" runat="server" ForeColor="Black" Text="Last" >
</asp:LinkButton>
</td> </tr>
<%--Ends Here (Paging for Pending Nested Repeaters)--%>
</td></tr>
<br />
</table>
</FooterTemplate>
</asp:Repeater>
</ItemTemplate>
<SeparatorTemplate><br /><br /></SeparatorTemplate>
</asp:Repeater>
I couldn't understand how to do paging.

Answer 1

You shroud read about it:
http://idunno.org/archive/2004/10/30/145.aspx
http://support.microsoft.com/kb/306154