using Newtonsoft.Json;

using Newtonsoft.Json.Serialization;

using System.Reflection;

using System;

​

namespace ConsoleApplication8

{

    public class model

    {

        [JsonProperty(PropertyName = "id")]

        public long ID { get; set; }

​

        [JsonProperty(PropertyName = "some_string")]

        public string SomeString { get; set; }

    }

​

    public class Program

    {

        public static void Main(string[] args)

        {

            var model = new model();

​

            var result = string.Empty;

​

            PropertyInfo[] props = typeof(model).GetProperties();

            foreach (PropertyInfo prop in props)

            {

                foreach (object attr in prop.GetCustomAttributes(true))

                {

                    result += (attr as JsonPropertyAttribute).PropertyName + " ; ";

                }

            }

            Console.WriteLine(result);

        }

    }

}