using System;

using System.Linq;

using System.Collections.Generic;

using Newtonsoft.Json;

using Google.Protobuf.Collections;

using AutoMapper;

​

public class Program

{

    public class Wrapper1{

        public List<View1> List{get;set;} 

    }

    public class Wrapper2{

        public MapField<string, View2> Fields{get;set;} 

    }

    public class View1{

        public string Name{get;set;}

        public string LastName{get;set;}

        public string NationalCode{get;set;}

    }

    public class View2{

        public string Name{get;set;}

        public string LastName{get;set;}

        public string NationalCode{get;set;}

    }

     static string DotNetToOracle(string text)

        {

            Guid guid = new Guid(text);

            return BitConverter.ToString(guid.ToByteArray()).Replace("-", "");

        }

    public static void Main()

    {

        Console.WriteLine(DotNetToOracle("{3BE1CEE0-7E43-4A5B-8156-D18E6E5CE7CE}"));

    }

}

​