<%@ Control Language="vb" AutoEventWireup="false" Codebehind="_map.ascx.vb" Inherits="portal.__map" TargetSchema="http://schemas.microsoft.com/intellisense/ie5" %>
<form id="FormMap" method="post" runat="server">
	<asp:DataGrid id="dgMap" runat="server" Width="280px" AutoGenerateColumns="False" GridLines="None">
		<Columns>
			<asp:BoundColumn DataField="FILE_" HeaderText="Файл"></asp:BoundColumn>
			<asp:BoundColumn DataField="TEXT" HeaderText="Описание"></asp:BoundColumn>
			<asp:ButtonColumn Text="Скачать" CommandName="Open"></asp:ButtonColumn>
		</Columns>
	</asp:DataGrid>
</form>

предпологается наличие ";"

<script language="javascript">
<!--
	function __doPostBack(eventTarget, eventArgument) {
		var theform;
		if (window.navigator.appName.toLowerCase().indexOf("netscape") > - 1 ) {
			theform = document.forms["_ctl3:FormMap"];
		}
		else {
			theform = document._ctl3:FormMap;
		}
		theform.__EVENTTARGET.value = eventTarget.split("$").join(":");
		theform.__EVENTARGUMENT.value = eventArgument;
		theform.submit();
	}
// -->
</script>