DropDownExtender: Refresh content

I have a drop-down extender, where the control ID references a Panel, which contains a TreeView. When I update the contents of the TreeView, and hit the drop-down button, the treeview shown is not refreshed. Is there any way that I can force a refresh?

Thanks - Bennie

How are you updating the treeview?

Ron

I am adding/removing tree nodes in a public method of the treeview.

Is the TreeView in an UpdatePanel? I'm trying to determine how all of the controls in question are composed. Could you post a snippit of the aspx?

this is the DropDownExtender:

<

ajaxToolkit:DropDownExtenderrunat="server"ID="DDE"TargetControlID="bookmarksTextLabel"DropDownControlID="DropPanel"/>

This is the DropPanel:

<asp:PanelEnableViewState="false"ID="DropPanel"ForeColor="#747678"runat="server"Style="text-align:left;padding-bottom:0px;padding-top:0px;margin-bottom:0px;margin-top:0px;display:none;visibility:hidden;">

<divstyle="border-color:Blue; border-width: 1px; border-style:solid; padding: 1px,1px,1px,1px;">

<bmt:BookmarksTreeid="tvBookmarks"runat="server"/></div></asp:Panel>

I tried enabling/disabling ViewState, but to no avail.

Does it work without using the drop-down extender? Please verify that the tree is populating correctly without the extender on the page. Is all of this content within an UpdatePanel?

It does work without the DropDownExtenter. No, there is no outer UpdatePanel.