using System;

using System.Collections.Generic;

using System.Linq;

using System.Text.RegularExpressions;

using Newtonsoft.Json;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello!");

        string json = @"{'instrumentxxx':[{'id':'B1QH8P2','APrice':5.83,'BPrice':6.83,'CPrice':7.83}]}";

        var end = JsonConvert.DeserializeObject<EndofDay>(json);

        Console.WriteLine(end.instrumentxxx[0].id);

    }   

}

​

public class EndofDay

{

​

    public List<Instrumentxxx> instrumentxxx { get; set; }   

}

​

public class Instrumentxxx

{

   public string id { get; set; }

   public double APrice { get; set; }

   public double BPrice { get; set; }

   public double CPrice { get; set; }   

}