Question

-1

How to return JSON with ASP.NET & jQuery

rated 0 times [ 4] [ 5] / answers: 1 / hits: 134717 / 11 Years ago, thu, august 15, 2013, 12:00:00

I cannot get how I can return JSON data with my code.

JS

$(function () {

$.ajax({

        type: "POST",

        url: "Default.aspx/GetProducts",

        data: "{}",

        contentType: "application/json; charset=utf-8",

        dataType: "json",

        success: function (msg) {

            // How to return data here like a table???  

            $("#Second").text(msg.d);

            //alert(msg.d);

        }

    }); 

});

C# of Default.aspx.cs

[WebMethod]

public static string GetProducts()

{

   var products  = context.GetProducts().ToList();   

   return What do I have to return ????

}

Answers

Only authorized users can answer the question. Please sign in first, or register a free account.

ryder

Add To Favorites

Follow

Total Points: 473

Total Questions: 110

Total Answers: 91

Location: Northern Ireland

Member since Mon, Nov 14, 2022

2 Years ago

answered 11 Years ago madelyn · Accepted Answer

You're not far; you need to do something like this:

[WebMethod]

public static string GetProducts()

{

  // instantiate a serializer

  JavaScriptSerializer TheSerializer = new JavaScriptSerializer();



  //optional: you can create your own custom converter

  TheSerializer.RegisterConverters(new JavaScriptConverter[] {new MyCustomJson()});



  var products = context.GetProducts().ToList();   



  var TheJson = TheSerializer.Serialize(products);



  return TheJson;

}

You can reduce this code further but I left it like that for clarity. In fact, you could even write this:

return context.GetProducts().ToList();

and this would return a json string. I prefer to be more explicit because I use custom converters. There's also Json.net but the framework's JavaScriptSerializer works just fine out of the box.