Question

Can any one guide, what is wrong with below generated JSON code which are generated thru asp.net web service’s methods.

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Message from webpage
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Error: Invalid JSON: <?xml version="1.0" encoding="utf-8"?>

<string xmlns="http://tempuri.org/">[{"id:" '1',"title:" 'Event1',"start:"  1310236200,"end:" 1310236200,"allDay:"true,"description:" 'Event1'},{"id:" '3',"title:" 'Event2',"start:"  1309804200,"end:" 1309804200,"allDay:"true,"description:" 'Event2'},{"id:" '4',"title:" 'Event5',"start:"  1311705000,"end:" 1311705000,"allDay:"true,"description:" 'Event5'},{"id:" '5',"title:" 'Event3',"start:"  1309006800,"end:" 1309006800,"allDay:"false,"description:" 'Event3'},{"id:" '6',"title:" 'Event4',"start:"  1310495400,"end:" 1310495400,"allDay:"true,"description:" 'Event4'},{"id:" '7',"title:" 'Time Event1',"start:"  1312144200,"end:" 1312174800,"allDay:"false,"description:" 'Time Event1'},{"id:" '8',"title:" 'save1',"start:"  1312309800,"end:" 1312309800,"allDay:"true,"description:" 'save1111'},{"id:" '9',"title:" 'today',"start:"  1311273000,"end:" 1311273000,"allDay:"true,"description:" 'today'}]</string>
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OK   
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Answer 1

I think your problem is concluded in wrong request to service. Please see working code:

Web-service code:

namespace Test.Service
{
  [WebService(Namespace = "http://tempuri.org/")]
  [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
  [ToolboxItem(false)]
  [ScriptService]
  public class WebService1 : WebService
  {
    [WebMethod]
    public object HelloWorld()
    {
      // ! return anonymous object. It cannot be serialized to xml and orients solely to json-request.
      return new { value = 12345, name = "John" };
    }
  }
}

1. getting data via jquery

   <script type="text/javascript"> 
     $(document).ready(function () {
       $.ajax({
           type: "POST",
           contentType: "application/json; charset=utf-8",
           url: "Service/WebService1.asmx/HelloWorld",
           data: "{}",
           dataType: "json",
           success: function (data) {
             alert(data.d.value);
             alert(data.d.name);
           }
       });
     }
   </script>
   

2. getting data via ASP.NET AJAX

   <asp:ScriptManager ID="_scriptManager" runat="server">
     <Services>
       <asp:ServiceReference Path="Service/WebService1.asmx" />
     </Services>
   </asp:ScriptManager>
   
   <script type="text/javascript"> 
     $(document).ready(function () {
       Test.Service.WebService1.HelloWorld(OnComplete);
   
       function OnComplete(result) {
         alert(result.value);
         alert(result.name);
       }
     }  
   </script>