using System;

using System.Collections.Generic;

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

public class Program

{

    public static void Main(string[] args)

    {

        string json = @"

            {

               ""items"": [

                  [10, ""file1"", ""command 1""],

                  [20, ""file2"", ""command 2""],

                  [30, ""file3"", ""command 3""]

               ]

            }";

        Foo foo = JsonConvert.DeserializeObject<Foo>(json, new ItemConverter());

        foreach (Item item in foo.Items)

        {

            Console.WriteLine("Id: " + item.Id);

            Console.WriteLine("File: " + item.File);

            Console.WriteLine("Command: " + item.Command);

            Console.WriteLine();

        }

    }

}

​

class ItemConverter : JsonConverter

{

    public override bool CanConvert(Type objectType)

    {

        return (objectType == typeof(Item));

    }

    public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)

    {

        JArray array = JArray.Load(reader);

        return new Item

        {

            Id = (int)array[0],

            File = (string)array[1],

            Command = (string)array[2]

        };

    }

    public override bool CanWrite

    {

        get { return false; }

    }

    public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)

    {

        throw new NotImplementedException();

    }

}

​

class Foo

{

    public List<Item> Items { get; set; }

}

​

class Item

{

    public int Id { get; set; }

    public string File { get; set; }

    public string Command { get; set; }

}

​

​