simple jquery callback works on .net3.5 but nothing fires on .net 2.0

Posted by  Ashish Pandey
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i have the following jquery postback method on the client

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="CallServerWithParameters.aspx.cs" Inherits="CallServerWithParameters" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">

<html xmlns="">

<head runat="server">


    <script src="jquery-1.2.6.js" type="text/javascript"></script>

          <script language="javascript">

            $(document).ready(function() {

                $("#txtNoOfMales").change(function() {

                    var ticketRequired = this.value;

                    var options = {

                        type: "POST",

                        url: "CallServerWithParameters.aspx/GetAvailableTicketsForMales",

                        data: "{no:" + ticketRequired + "}",

                        contentType: "application/json; charset=utf-8",

                        dataType: "json",

                        success: function(response) {

                            if (response.d != "") {






                    //Call the PageMethods







    <form id="form1" runat="server">


    No of Male Tickets:<asp:TextBox ID="txtNoOfMales" runat="server"></asp:TextBox>





and the following web method on the server side

using System;

using System.Collections.Generic;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.Services;

public partial class CallServerWithParameters : System.Web.UI.Page


    protected void Page_Load(object sender, EventArgs e)




    public static string GetAvailableTicketsForMales(int no)


        string result = "";

        int NoOfTicketsAvailable = 5;

        if (no > NoOfTicketsAvailable)


            result = "Only " + NoOfTicketsAvailable.ToString() + " Male ticket(s) avaialable. Please eneter a lower number!";


        return result;



problem is everything works fine on .net 3.5 but if i use the same code on .net 2.0 the webmethod event does not get call at all, anybody have any idea what i did wrong?

  1. Re: simple jquery callback works on .net3.5 but nothing fires on .net 2.0

    Hi Ashish, 

    try this: