I have an accordion and in one of the sections I am using the ajax NumericUpDownExtender.

If I select the current index as the one with the NumericUpDownExtender in it then it works fine. 

If any other index is selected the ajax control does not load. 

Wondering what could be the issue and if anyone knows a fix for this? I was thinking about putting an updatePanel around the ajax as well but I'm not sure how to update the panel whenever the heading is clicked.

I appreciate any help. 

Thank you,

John

Code: 

<div class="accordion">

        <div>

      <h3> Heading1 </h3>

            <div>

                       This is the current index

            </div>      

      </div>

      <div>

      <h3> Heading </h3>

            <div>

                  <% This is opened only after clicking the heading, but the AJAX control wont work. 

                        If this is the used as the starting index, the control works. %>

                  <asp:TextBox id="txtBlah"> 

                  <ajax:NumericUpDownExtender id="blah" TargetControlID="txtBlah" runat="server" />

                  

            </div>      

      </div>

</div>