<asp:WebPartZone ID="RightZone" runat="server">
    <ZoneTemplate>
        <asp:UpdatePanel ID="UpdatePanel1" runat="server">
            <ContentTemplate>
                <uc1:MyControl ID="MyControl1" runat="server" />
            </ContentTemplate>
        </asp:UpdatePanel>
    </ZoneTemplate>
</asp:WebPartZone>
