Multiple Update Panels In A Datalist - Can't Add Trigger

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'." 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?

THE SHORT VERSION:
UPDATEPANEL1
-DATALIST
--ITEM
---UPDATEPANEL2
----CONTROLS

I want one control to update the item updatepanel only and the other to update the entire datalist.

<asp:UpdatePanel ID="UpdatePanelFiles" runat="server" ChildrenAsTriggers="False" UpdateMode="Conditional">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="LinkButtonRemove" />
</Triggers>
<ContentTemplate>
<asp:DataList ID="DataListFiles" class="MediaManagerDataList" runat="server" ItemStyle-BackColor="#ffffff" AlternatingItemStyle-BackColor="#E7F4FF" OnItemCommand="DataListFiles_ItemCommand">
<ItemTemplate>
<asp:UpdatePanel ID="UpdatePanelItem" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<div class="item">
<asp:LinkButton ID="LinkButtonRemove" CommandName="remove" runat="server">Remove</asp:LinkButton>
</div>
</ContentTemplate>
</asp:UpdatePanel>
</ItemTemplate>
</asp:DataList>
</ContentTemplate>
</asp:UpdatePanel>