JSON desearilization in console application ASP

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C#

C#4.0

I am trying to Deserialization of the given string
My code goes here

using System.Runtime.Serialization.Json;
using System.Runtime.Serialization;

   public class TestL
    {
        public string RESULT { get; set; }
        public string TYPES { get; set; }
        public string HEADER { get; set; }
        public string ROW { get; set; }

    }
 class Program
    {
        static void Main(string[] args)
        {
              var  jsonString = "[{\"RESULT\":{\"TYPES\":[\"bigint\",\"varchar\",\"int\",\"int\",\"varchar\",\"varchar\",\"varchar\",\"varchar\",\"varchar\",\"varchar\",\"bigint\",\"varchar\",\"decimal\",\"decimal\",\"date\"],\"HEADER\":[\"kvk\",\"bedrijfsnaam\",\"kvks\",\"sub\",\"adres\",\"postcode\",\"plaats\",\"type\",\"status\",\"website\",\"vestiging\",\"rechtsvorm\",\"lat_rad\",\"lon_rad\",\"anbi\",\"ROWS\":[[\"273121520000\",\"Kinkrsoftware\",\"27312152\",\"0\",\"Oude Trambaan 7\",\"2265CA\",\"Leidschendam\",\"Hoofdvestiging\",null,\"kinkrsoftware.nl\",\"9789723\",null,null,null,null]]}}";
          
         
            Object ooo= new Object();
            ooo = JsonDeserialize<TestL>(jsonString);
            Console.WriteLine(((JSONDemo.TestL)(ooo)).TYPES);
            Console.ReadLine();     
        }
        public static T JsonDeserialize<T>(string jsonString)
        {
            DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(T));
            MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonString));
            T obj = (T)ser.ReadObject(ms);
            return obj;
        }

     
    }

I cannot desearilize my data
this data is
a column return from select query "select * from KVK limit 100"
please help me to desearilize

A lot thanks in advance