using Newtonsoft.Json;

using Newtonsoft.Json.Serialization;

using System;

using System.Collections.Generic;

using System.IO;

using System.Linq;

using System.Reflection;

using System.Runtime.Serialization;

using System.Text;

​

namespace demo

{

    [DataContract()]

    public class Students

    {

        [DataMember]

        public int StudentId { get; set; }

        [DataMember(Name = "studentNames")]

        public string StudentName { get; set; }

        public Students(int studentId, string studentName)

        {

            StudentId = studentId;

            StudentName = studentName;

        }

    }

    /// <summary>

    /// Create property name default with each property of object

    /// </summary>

    public class AllPropertiesResolver : DefaultContractResolver

    {

        protected override JsonProperty CreateProperty(MemberInfo member, MemberSerialization memberSerialization)

        {

​

            JsonProperty property = base.CreateProperty(member, memberSerialization);

            if (memberSerialization == MemberSerialization.OptIn && property.PropertyName != property.UnderlyingName)

            {

                property.Ignored = false;

                property.PropertyName = property.UnderlyingName;

            }

​

            return property;

        }

    }

    /// <summary>

    /// Create property name default with object

    /// </summary>

    public class IncludeAllPropertiesContractResolver : DefaultContractResolver

    {

        protected override IList<JsonProperty> CreateProperties(Type type, MemberSerialization memberSerialization)

        {

            IList<JsonProperty> properties = base.CreateProperties(type, memberSerialization);

​

            foreach (var jsonProperty in properties)

            {

                if (jsonProperty.PropertyName != jsonProperty.UnderlyingName)

                {

                    jsonProperty.PropertyName = jsonProperty.UnderlyingName;

                }

            }

            return properties;

        }

    }

​

    class Program

    {

        static void Main(string[] args)

        {

            Console.WriteLine("Hello World!");

​

            Students student = new Students(1, "Nguyen van a");

            // Create a stream to serialize the object to.  

            var ms = new MemoryStream();

            DataContractSerializer ser = new DataContractSerializer(typeof(Students));

            ser.WriteObject(ms, student);

            string json = Encoding.Default.GetString(ms.ToArray());

            Console.WriteLine(json);

            var studentJson = "{\"StudentId\": 13,\"studentNames\": \"DN_001\"}";

            //var studentJson2 = "{\"studentid\": 14,\"StudentNames\": \"DN_001\"}";

            Students deserialized = JsonConvert.DeserializeObject<Students>(studentJson);

            var objectnew = JsonConvert.SerializeObject(deserialized);

            var obj = JsonConvert.SerializeObject(deserialized, new JsonSerializerSettings

            {

                ContractResolver = new IncludeAllPropertiesContractResolver()

            });

​

           // Students deserialized2 = JsonConvert.DeserializeObject<Students>(studentJson2);

            Console.ReadLine();

        }

    }

}

​