<table cellpadding="0" cellspacing="0" style=" width:100%; height: 215px;">
                                <tr>
                                    <td style=" width:18%; vertical-align:top">           
                                            <qsf:RTV runat="server" ID="CatTree1" ></qsf:RTV>                                       
                                    </td>
                                    
                                    <td style="width:80%;vertical-align:top">  
                                       <asp:UpdatePanel postbackID="UpdatePanel1" runat="server" UpdateMode="Conditional">
                                            <ContentTemplate>
                                                <asp:PlaceHolder ID="PlaceHolder_UC" runat="server"></asp:PlaceHolder>                                                   
                                            </ContentTemplate>
                                            
                                            <Triggers>
                                                <asp:AsyncPostBackTrigger ControlID="CatTree1" />
                                            </Triggers>
                                        </asp:UpdatePanel>
                                    </td>
                                        
                                </tr>                                                                                            
                            
                            </table>