Call ASMX via jQuery fails

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VS2010
ASP.Net 4.0
Solution: Test.sln with 1 project
Web Application
Project: Test
Test.aspx (client code)
Test.aspx.cs (web method)
This works:

C#

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="BlendSpecAlerts.aspx.cs" Inherits="ADS.BlendOptimizer.BlendSpecAlerts" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<script type="text/javascript" src="scripts/jquery.js"></script>
<script type="text/javascript" src="scripts/json.js"></script>
<script type="text/javascript">

function GetData() {

        var data = new Object();
        data.Message= "1";
        $.ajax({
            url: "Test.aspx/GetData",
            type: "POST",
            contentType: "application/json;charset=utf-8",
            dataType: "json",
            data: JSON.stringify(data),
            success: function (result) {
               alert(result.d)
            }
        })
}
</script>
<input type="button"  önclick="Getdata()"/>
</body>
</html>

Test.aspx.cs

[WebMethod()]
      [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
      public  static string  GetData(string message)
      {
          return "I returned your " + message

This does NOT work:

Now, when I create a new project within Test.sln MyWebService with Test.ASMX service and include the same web method like below:

In the jquery call:

url: "http://localhost/MyWebService/Test.aspx/GetData"

[WebService(Namespace = "http://blabla")]
   [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
   [ToolboxItem(false)]
   public class Test: System.Web.Services.WebService
   {
       [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
       [WebMethod]
       public string GetData(string message)
       {
               return "I returned your " + message

       }

Result:

VB

Error in: http://localhost/Test/MyWebService/Test.asmx/Test
error: undefined
type: ajaxError
readystate: 4
status: 500

I can access the .asmx directly ok by pasting in http://localhost/test/test.asmx/Test
and I get a result.

For many hours I have looked for solutions, (cross domain issues (to which I follow the recommendations to setup the web service to allow a cross domain request), etc, web.config settings.. )
I am at my wits end here. I feel I need someone next to me to show me what am I doing wrong.

Please don't provide some link that will have the magical solution, I have been there.
Why is this not working!?

Thanks,
Robert

Posted 20-Jun-14 18:13pm

Member 3493606

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NitinDhapte · Answer 1 · 2014-06-21T00:32:00

Dear Robert,

Please note, if your parameter is in string format then use Single Quote like
Ex. data: "{'message':'1'}",

and
In case your parameter is in interger/double format then do not use anything.

Ex. data: "{'message':1}",

Try this:

JavaScript

function GetData() { 
    var msg="1";
    $.ajax({
        url: "Test.aspx/GetData",
        type: "POST",
        contentType: "application/json;charset=utf-8",
        dataType: "json",
        data: "{'message':'"+msg+"'}",
        success: function (result) {
           alert(result.d)
        }
    });
}