AJAX to web method not returning JSON

Question

I am calling a web method in aspx page from my js file using AJAX. I have set the method to be [WebMethod] and the page inherits from System.Web.Ui.Page class. Still it does not

Answer 1

The only thing I see missing is making the method static.

read this article

http://encosia.com/using-jquery-to-directly-call-aspnet-ajax-page-methods/

Answer 2

Try this

    [WebMethod]
    [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
        public string CustomOrderService(string id)
        {
            string result;
            // code logic which sets the result value
            result="some value";

            return result;
        }

Answer 3

Use Static String.

    [WebMethod]
    public static string CustomOrderService(string id)
    {
        string result;
        // code logic which sets the result value
        result="some value";

        return result;
    }

Answer 4

Decorate your CustomOrderService method with:

[ScriptMethod(ResponseFormat = ResponseFormat.Json)]

Also, change your return data to:

return new JavaScriptSerializer().Serialize(result);