using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Diagnostics;

using System.IO;

using System.Threading;

using System.Collections.ObjectModel;

using System.Reflection;

using System.Runtime.Serialization;

using System.Data;

using System.ComponentModel;

using System.Globalization;

using System.Runtime.Serialization.Formatters.Binary;

using System.Collections.Specialized;

using System.Web.Routing;

using System.Net.Mail;

using System.Runtime.InteropServices;

using System.Text.RegularExpressions;

using System.Net;

using System.Runtime.Serialization.Formatters;

​

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using Newtonsoft.Json.Converters;

using Newtonsoft.Json.Serialization;

​

​

    //[DataContract]

    class x

    {

        //[DataMember]

        public DateTime datum = new DateTime(1232, 3, 23);

    }

​

​

    class TestClass

    {

        internal static void Test()

        {

            var settings = new JsonSerializerSettings { DateFormatString = "yy" };

            var json1 = JsonConvert.SerializeObject(new x(), settings);

​

            Console.WriteLine("JSON with added settings: ");

            Console.WriteLine(json1); // Prints {"datum":"32"}

​

            var json2 = JsonConvert.SerializeObject(new x());

​

            Console.WriteLine("JSON without added settings: ");

            Console.WriteLine(json2); // Prints {"datum":"1232-03-23T00:00:00"}

        }

    }

​

    public class Program

    {

        public static void Main()

        {

            Console.WriteLine("Json.NET version: " + typeof(JsonSerializer).Assembly.FullName);

            TestClass.Test();

​

        }

    }

​