use jquery to do this task you have three link buttons in gridview
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script language="javascript">
$(document).ready(function(){
$(".hideit").click(function(){
$(".hide").hide();
});
});
</script>
</head>
<body>
<form id="form1" runat="server">
<asp:gridview id="Grd" runat="server" autogeneratecolumns="false" xmlns:asp="#unknown">
<columns>
<asp:templatefield headertext="to be hide">
<asp:linkbutton id="lnktobeHideOne" runat="Server" text="to be hide" cssclass="hide" />
</asp:templatefield>
<asp:templatefield headertext="to be hide">
<asp:linkbutton id="lnktobeHide2" runat="Server" text="to be hide" cssclass="hide" />
</asp:templatefield>
<asp:templatefield headertext="to be hide">
<asp:linkbutton id="lnktobeHideOne" runat="Server" text="to be hide" cssclass="hideit" />
</asp:templatefield>
</columns>
</asp:gridview>
</body>