JQuery :: Ashx Handler Using Jquery Autocomplete - Show Different Search Record

i have using jquery for autocompelete option and iam using ashx file, i have 2textbox, i need to show diffrent search record in the text box, iam using 2 ashx file to show the value using jquery, i want to user single ashx file instead of iam using 2 ashx handle filer can use switch case to handle this , i want to use 7textbox all textbox i need to do autosearch, how to handle this senario using jquery and ashx handler file

clsquery.updatetablestring = "select top 2 Cont_number from ASPrearrival_list where Cont_number";
clsquery.updatetablestring = "select top 2 custid,custname from ASCustomer where custname";
// this is my auto search iam using 2 handler file , i wants only one handler instead of 2handler
<script type="text/javascript" src="jquery.autocomplete.js"></script>
<script type="text/javascript">
$(document).ready(function()
{
$("#<%=txtcontno.ClientID%>").autocomplete("Handler1.ashx");
$("#<%=txtcname.ClientID%>").autocomplete("Handler.ashx");
}
);
handler ashx file
<%@ WebHandler Language="C#" %>
using System;
using System.Web;
using System.Data.SqlClient;
using ASbusinesslogic;
public class Handler : IHttpHandler {
public void ProcessRequest(HttpContext context)
{
string firstname = context.Request.QueryString["q"];
string sql = clsquery.updatetablestring;
sql = clsquery.updatetablestring+" "+"Like"+" '"+ firstname +"%'";
//string sql = "select top 2 mlid,mloname from ASlinermaster where mloname like '" + firstname + "%'";
using (SqlConnection connection = new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["ConnectionString"].ToString()))
using (SqlCommand command = new SqlCommand(sql, connection)) { connection.Open();
using (SqlDataReader reader = command.ExecuteReader())
{
while (reader.Read())
{
context.Response.Write(reader.GetString(1)+ "-"+ reader.GetValue(0) + Environment.NewLine);
}
}
}
}
public bool IsReusable {
get {
return false;
}
}
}
handler1
<%@ WebHandler Language="C#" %>
using System;
using System.Web;
using System.Data.SqlClient;
using ASbusinesslogic;
public class Handler1 : IHttpHandler {
public void ProcessRequest(HttpContext context)
{
string firstname = context.Request.QueryString["q"];
string sql = clsquery.updatetablestring + " " + "like '" + firstname + "%' ";
using (SqlConnection connection = new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["ConnectionString"].ToString()))
using (SqlCommand command = new SqlCommand(sql, connection))
{
connection.Open();
using (SqlDataReader reader = command.ExecuteReader())
{
while (reader.Read())
{
context.Response.Write(reader.GetString(0) + Environment.NewLine);
}
}
}
}
public bool IsReusable {
get {
return false;
}
}
}