using System;

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using System.Collections.Generic;

using System.IO;

using System.Transactions;

public class Program

{

    public static void Main()

    {

        List<Dictionary<string, string>> Result = new List<Dictionary<string, string>>();

            var columns = new Dictionary<string, string>

            {

                { "FirstName", "Mathew"},

                { "Surname", "Thompson"},

                { "Gender", "Male"},

                { "SerializeMe", "GoOnThen"}

            };

            Result.Add(columns);

            Result.Add(columns);

            var jsonString = JsonConvert.SerializeObject(Result);

​

            //var serialized = jsSerializer.Serialize(columns);

            //return jsonString;

            Console.WriteLine(jsonString);

    }

}