ASP.NET
Pls any one check this Javascript
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="tt_suppliegroupsetup.ascx.cs" Inherits="UserControls_tt_suppliegroupsetup" %>(here it indicates Too many characters in character literal)
<script type="text/javascript">
function SetContextKey() {
$find('<%=AutoCompleteExtender1.ClientID>%').set_contextKey($get("<%=ddlCities.ClientID %>").value);
}