Does anyone know if its possible to have a nested repeater, with the nested repeater initially collapsed and expandable via the ajax CollapsiblePanelExtender

Code:
<asp:Repeater ID="rptDrill" runat="server">
        <HeaderTemplate>
            <table>
                <tr>
                    <th class="FormDesciptionBox">View</th>
                    <th class="FormDesciptionBox">Username</th>
                    <th class="FormDesciptionBox">Fullname</th>
                    <th class="FormDesciptionBox">Score</th>
                </tr>
        </HeaderTemplate>

        <ItemTemplate>
            <tr>
                <td class="FormContentBox"><asp:ImageButton ImageUrl="~/image/expander.gif" runat="server" ID="imgToggle" /></td>
                <td class="FormContentBox"><asp:Literal ID="litUserName" runat="server" /></td>
                <td class="FormContentBox"><asp:Literal ID="litFullname" runat="server" /></td>
                <td class="FormContentBox"><asp:Literal ID="litAverage" runat="server" /></td>
            </tr>
            
            <cc1:CollapsiblePanelExtender runat="server" ID="CollapsiblePanelExtender1" 
                TargetControlID="ShowHide" 
                CollapsedSize="0"
                ExpandedSize="300"
                Collapsed="True"
                ExpandControlID="imgToggle"
                CollapseControlID="imgToggle"
                 ImageControlID="imgToggle"
                SuppressPostBack="true"
                SkinID="CollapsiblePanelDemo">
             </cc1:CollapsiblePanelExtender>
             
            
               <asp:Repeater runat="server" ID="rptDrillNest">
                   
                    <ItemTemplate>
                     <asp:Panel ID="ShowHide" runat="server">
                        <tr>
                            <td class="FormContentBox">&nbsp;</td>
                            <td class="FormContentBox"><%#Eval("title")%></td>
                            <td class="FormContentBox"><%#Eval("datetook")%></td>
                            <td class="FormContentBox"><%#Eval("score")%></td>
                         </tr>
                    </asp:Panel>
                    </ItemTemplate>
                    
                </asp:Repeater>
           
             
          
       </ItemTemplate>
        <FooterTemplate>
            </table>
        </FooterTemplate>
    </asp:Repeater>