Question

hi i m Using Web service in IPhone i am Getting Json Response null when i use loacal server to Run i m 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);
}