Targeting element issue

Hi,

When recording a test I cannot seem to get the recorder to see click events on the following code. Neither the textbox or the Cascadingdropdown are recognized. Im guessing the issue is the UpdatePanel?

Any ideas?

Cheers
Jeremy

 <asp:UpdatePanel ID="patternFilterUpdate" runat="server">
        <ContentTemplate>
            <Asp:textBox id="txtPatternName" runat="server" width="180" CSSClass="txtInput"  />
              <ajaxToolkit:PopupControlExtender ID="PopupControlExtender1" runat="server"
                TargetControlID="txtPatternName"
                PopupControlID="pnlpatternfiltering"
                Position="Bottom"/>
        </ContentTemplate>
    </asp:UpdatePanel>
    
    <asp:panel runat="server" id="pnlpatternfiltering" CssClass="absolute">
    <asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
        <ContentTemplate>
        <ajaxToolkit:CascadingDropDown 
        EnableViewState="true"
        ID="CDDPattern"
        runat="server"
        TargetControlID="sbxorebody" 
        LoadingText="--Loading --"
        Category="Orebody" 
        PromptText="Select " 
        ServicePath="~/Services/PatternFilterService.asmx"
        ServiceMethod="GetOrebodies"
        ShowIgnore="False" />