Json Response NULL from webservice

Question

hi im Using Web service in IPhone i am Getting Json Response null when i use loacal server to Run im getting Response this is my Code

 [WebMethod]
        public string HelloWorld()
        {
            return "Hello World";
        }

this is my link to call webservice

http://tagcheckin.com/Webservice/Webservice1.asmx

Answer 1

To call a WebService from AJAX, you need to decorate the service with the [ScriptService] attribute

If you want to access you service using GET :

• Add the [ScriptMethod(ResponseFormat = ResponseFormat.Json, UseHttpGet = true)] attribute to the web method

   [WebMethod] [ScriptMethod(ResponseFormat = ResponseFormat.Json, UseHttpGet = true)] public string HelloWorld() 

• Add the following configuration to your web.config right under <system.web> (server config where the web service lives).

   <webServices> <protocols> <add name="HttpGet" /> <add name="HttpPost" /> </protocols> </webServices> 

As a reminder, when using XML services you need to access the returned object as:

success: function (m) {
    $res.append("Message: " + m.d);
}