JSON Serialization using DataContract Serializer

Serialze object to JSON string using DataContractSerializer and Extention Method


using System;
using System.Text;
using System.Runtime.Serialization;
using System.IO;
using System.Runtime.Serialization.Json;
public static class JSONHelper
public static string ToJOSN(this T obj)
using (MemoryStream ms = new MemoryStream())
var ser = new DataContractJsonSerializer(obj.GetType());
ser.WriteObject(ms, obj);
return Encoding.Default.GetString(ms.ToArray());
public static T FromJSON(this string str)
using (var ms = new MemoryStream(Encoding.Default.GetBytes(str.ToCharArray())))
var ser = new DataContractJsonSerializer(typeof(T));
return (T)ser.ReadObject(ms);

To use DataContractSerializer, we need to mark class which we want to serialize as DataContract.

Let say,


public class student
public int rollno { get; set; }
public string name { get; set; }

Following is the driving program.

public static void Main(string[] args)
var s1 = new student()
rollno = 1,
name = "test"

// Serialize to Json string
var jsonString = s1.ToJOSN();
// Deserialize to object
var obj = jsonString.FromJSON();


  • JSONHeler.cs (37599-8713-JSONHelper.cs.txt)
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