converting list to json format - quick and easy way

Question

Let\'s say I have an object MyObject that looks like this:

public class MyObject
{
  int ObjectID {get;set;}
  string ObjectString {get;set;}
} 

Answer 1

You could return the value using return JsonConvert.SerializeObject(objName); And send it to the front end

Answer 2

I've done something like before using the JavaScript serialization class:

using System.Web.Script.Serialization;

And:

JavaScriptSerializer jss = new JavaScriptSerializer();

string output = jss.Serialize(ListOfMyObject);
Response.Write(output);
Response.Flush();
Response.End();

Answer 3

I prefer using linq-to-json feature of JSON.NET framework. Here's how you can serialize a list of your objects to json.

List<MyObject> list = new List<MyObject>();

Func<MyObject, JObject> objToJson =
    o => new JObject(
            new JProperty("ObjectId", o.ObjectId), 
            new JProperty("ObjectString", o.ObjectString));

string result = new JObject(new JArray(list.Select(objToJson))).ToString();

You fully control what will be in the result json string and you clearly see it just looking at the code. Surely, you can get rid of Func<T1, T2> declaration and specify this code directly in the new JArray() invocation but with this code extracted to Func<> it looks much more clearer what is going on and how you actually transform your object to json. You can even store your Func<> outside this method in some sort of setup method (i.e. in constructor).

Answer 4

For me, it worked to use Newtonsoft.Json:

using Newtonsoft.Json;
// ...
var output = JsonConvert.SerializeObject(ListOfMyObject);

Answer 5

I would avoid rolling your own and use either:

System.Web.Script.JavascriptSerializer

or

JSON.net

Both will do an excellent job :)

Answer 6

why reinvent the wheel? use microsoft's json serialize or a 3rd party library such as json.NET