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Update Panel only doing full postback

Posted By:      Posted Date: August 28, 2010    Points: 0   Category :ASP.Net
I have a page with a TabContainer with 3 tabs.  Within each tab, I have an UpdatePanel.  One of my UpdatePanel's update mode is set to "conditional" and I've added an asyncpostbacktrigger with the controlId="btnClearEmail1" and the eventname="Click".  When I run the page and click the button assigned to the asyncpostback trigger, the page will do a full postback.  Am I forgetting something?  How can I get it to just refresh what is inside the UpdatePanel?  <asp:tabcontainer id="ajaxTabContainer" runat="server"> <asp:tabpanel id="ajaxTabCustomerInfo" runat="server" headertext="Customer Information" visible="true"> <contenttemplate> ... [clipped for brevity] </contenttemplate> </asp:tabpanel> <asp:tabpanel id="ajaxTabSiteBranding" runat="server" headertext="Custom Site Branding"> <contenttemplate> <asp:updatepanel id="UpdatePanel2" runat="server"> <contenttemplate> ... [clipped for brevity] </contenttemplate> </asp:updatepanel> </contenttemplate> </asp:tabpanel> <asp:tabpanel id="ajaxTabEmails" runat="server" headertext="E-mail Notifications"> <contenttemplate> <div> <asp:panel

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