using System;

using System.Collections.Generic;

using System.Text;

using System.IO;

using System.Runtime.Serialization;

using System.Runtime.Serialization.Json;

​

​

​

    class Program

    {

        public static string fileText = "";

        static void Main(string[] args)

        {

            Dictionary<string, object> dict = new Dictionary<string, object>();

            dict.Add("employee","john");

            dict.Add("sale",new Sale(9,5243));

            dict.Add("restaurant",new Restaurant("Cheese Cake Factory", "New York"));

            //  Console.Write(dict["sale"]);

                //Code for JSON

                DataContractJsonSerializer js = new DataContractJsonSerializer(typeof(Dictionary<string, object>));  

                MemoryStream msObj = new MemoryStream();  

                js.WriteObject(msObj, dict);  

                msObj.Position = 0;  

                StreamReader sr = new StreamReader(msObj);  

                string json = sr.ReadToEnd();  

                sr.Close();  

                msObj.Close();

                //Console.Write(json);

            // Decode the thing

            Console.Write(json);

            //json = json.Replace("_type", "_blah");

             Dictionary<string, object> result = new Dictionary<string, object>();

            using (MemoryStream stream = new MemoryStream(Encoding.UTF8.GetBytes(json)))

            {

               DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(Dictionary<string, object>));

               result = serializer.ReadObject(stream) as Dictionary<string, object>;

            }

​

        }

​

    }

​

    [DataContract]

    [KnownType(typeof(Sale))]

    public class Sale 

    {

        [DataMember(Name = "SaleId")]

        public int SaleId {get; set;}

        [DataMember(Name = "Total")]

        public int Total{ get; set;}

        public Sale(int saleid, int total)

        {

            SaleId = saleid;

            Total = total;

        }

        public int getTotal()

        {

            return  Total;

        }

    }

​

    [DataContract(Name = "Restaurant", Namespace="")]

    [KnownType(typeof(Restaurant))]

    public class Restaurant

    {

        [DataMember(EmitDefaultValue = false)]

        public string Name {get; set;}

        [DataMember(EmitDefaultValue = false)]

        public string City{get; set;}

​

        public Restaurant(string name, string city)

        {

            Name = name;

            City = city;

        }

    }

​

​

​