title: Multiple Update Panels In a Datalist. Can't Add Trigger
body: <p>My issues here is that this does not compile. I get "A control with ID 'LinkButtonRemove' could not be found for the trigger in UpdatePanel 'UpdatePanelFiles'."</p>
  
  <p>What I am trying to do is have two buttons in the item template.  One that updates just the ITEM and one that updates the entire DataList.  "LinkButtonRemove" is what I want to update the entire datalist.  Any ideas on why this isnt working?  Or how to do what I want to do?</p>
  
  <hr>
  
  <pre><code>THE SHORT VERSION:
  UPDATEPANEL1
  -DATALIST
  --ITEM
  ---UPDATEPANEL2
  ----CONTROLS
  </code></pre>
  
  <p><strong>I want one control to update the item updatepanel only and the other to update the entire datalist.</strong></p>
  
  <hr>
  
  <pre><code>       &lt;asp:UpdatePanel ID="UpdatePanelFiles" runat="server" ChildrenAsTriggers="False" UpdateMode="Conditional"&gt;
              &lt;Triggers&gt;
                  &lt;asp:AsyncPostBackTrigger ControlID="LinkButtonRemove" /&gt;
              &lt;/Triggers&gt;
              &lt;ContentTemplate&gt;
                  &lt;asp:DataList ID="DataListFiles" class="MediaManagerDataList" runat="server" ItemStyle-BackColor="#ffffff" AlternatingItemStyle-BackColor="#E7F4FF" OnItemCommand="DataListFiles_ItemCommand"&gt;
                      &lt;ItemTemplate&gt;
                          &lt;asp:UpdatePanel ID="UpdatePanelItem" runat="server" UpdateMode="Conditional"&gt;
                              &lt;ContentTemplate&gt;
                                  &lt;div class="item"&gt;
                                      &lt;asp:LinkButton ID="LinkButtonRemove" CommandName="remove" runat="server"&gt;Remove&lt;/asp:LinkButton&gt;
                                  &lt;/div&gt;
                              &lt;/ContentTemplate&gt;
                          &lt;/asp:UpdatePanel&gt;
                      &lt;/ItemTemplate&gt;
                  &lt;/asp:DataList&gt;
              &lt;/ContentTemplate&gt;
          &lt;/asp:UpdatePanel&gt;
  </code></pre>