using System;

using System.Collections.Generic;

using Newtonsoft.Json;

​

public class Program

{

    public static void Main()

    {       

        var definition = new { Name = "", a = new List<int>()};

​

        string json1 = @"{'Name':'James', 'a' : [1, 2, 3]}";

        var customer1 = JsonConvert.DeserializeAnonymousType(json1, definition);

        Console.WriteLine(customer1.a[2]);

    }

}

​