using System;

using System.Linq;

using System.Reflection;

​

    public class MyConstant

    {

        private string _new="AB";

        public string New { get { return _new; } set { _new =value; } }

        public string Admin {get{return  "AdminRole";}}

        public string Approver {get {return "ApproverRole";}}

        public string ToJson()

            {

                var members = typeof(MyConstant).FindMembers(MemberTypes.Property | MemberTypes.Field, BindingFlags.Public | BindingFlags.Instance | BindingFlags.Static, null, null)

                             .Select(mi => string.Format("{0}:'{1}'", mi.Name, mi.MemberType == MemberTypes.Field ? ((FieldInfo)mi).GetValue(this) : ((PropertyInfo)mi).GetValue(this, null)));

                return string.Format("{{{0}}}",string.Join(",",members));

            }

    }

public class Program

{

    public static void Main()

    {

        MyConstant cns = new MyConstant();

        string json =cns.ToJson();

        Console.WriteLine(json);

    }

}