I have a structure that looks like this. The updatepanel, reorderlist and placeholder are on a page. The content of the placeholder (checkbox and button in another updatepanel) is in a usercontrol which is loaded in OnItemDataBound function. The ScriptManager is located on the MasterPage above all this.

The problem is that I can't submit the form inside the usercontrol. It works if I remove the updatepanels (both, not only one no matter which) but otherwise nothing appears to happen.

I've looked at info regarding nested updatepanels and on the outer one I've set UpdateMode="Conditional" ChildrenAsTriggers="false" and also set the reorderlist as trigger so that one works.

Any ideas what might be wrong?

<updatepanel>

    <reorderlist>

        <placeholder>

            <updatepanel>

                <checkbox />

                <button />

            </updatepanel>  

        </placeholder>

    </reorderlist>

</updatepanel> 

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