or

<telerik:RadTreeList ID="RadTreeList1" runat="server" AllowMultiColumnSorting="True" AllowSorting="True" AutoGenerateColumns="False" DataKeyNames="mynode" DataSourceID="SqlDataSource1" ParentDataKeyNames="mynode2"></telerik:RadTreeList>

<div class="rgHeaderWrapper"> <div class="rgHeaderDiv" id="Control1_SP_Grid1_Grid1_Grid_GridHeader" style="overflow: hidden; margin-right: 17px;"> <table class="rgMasterTable rgClipCells rgClipCells" id="Control1_SP_Grid1_Grid1_Grid_ctl00_Header" style="overflow: hidden; table-layout: fixed; -ms-text-overflow: ellipsis; empty-cells: show;" cellspacing="0"> <div class="rgHeaderWrapper"> <div class="rgHeaderDiv" id="Control1_SP_Grid1_Grid1_Grid_GridHeader" style="overflow: hidden; margin-right: 17px;"> <table class="rgMasterTable rgClipCells rgClipCells" id="Control1_SP_Grid1_Grid1_Grid_ctl00_Header" style="width: 100%; overflow: hidden; table-layout: fixed; empty-cells: show;">