using System;

using System.Collections.Generic;

using Newtonsoft.Json;

public class Program

{

    public static void Main()

    {

        string json = @"

            {

              ""Documents"": {

                ""c97bba6f-c8ab-4453-91f8-f663f478910c"": {

                  ""id"": ""c97bba6f-c8ab-4453-91f8-f663f478910c"",

                  ""name"": ""name"",

                  ""sys"": {

                    ""c67bfa6f-c8ab-4453-91f8-f663f478910c"": {

                      ""id"": ""c97bba6f-c8ab-4453-91f8-f663f478910c"",

                      ""name"": ""sys name""

                    },

                    ""a67bfa6f-c8ab-4453-91f8-f663f478910c"": {

                      ""id"": "" a67bfa6f-c8ab-4453-91f8-f663f478910c"",

                      ""name"": ""sys name""

                    }

                  }

                },

                ""f97bba6f-c8ab-4453-91f8-f663f478910c"": {

                  ""id"": ""c97bba6f-c8ab-4453-91f8-f663f478910c"",

                  ""name"": ""OZL - B - MECH - AC - Fan Coil Units"",

                  ""sys"": {}

                }

              }

            }";

        var root = JsonConvert.DeserializeObject<RootObject>(json);

        foreach (var doc in root.Documents.Values)

        {

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

            Console.WriteLine("Name: " + doc.Name);

            Console.WriteLine("Sys:");

            foreach (var sys in doc.Sys.Values)

            {

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

                Console.WriteLine("  Name: " + sys.Name);

            }

            Console.WriteLine();

        }

    }

}

​

public class RootObject

{

    public Dictionary<Guid, Document> Documents { get; set; }

}

​

public class Document

{

    public Guid Id { get; set; }

    public string Name { get; set; }

    public Dictionary<Guid, Sys> Sys { get; set; }

}

​

public class Sys

{

    public Guid Id { get; set; }

    public string Name { get; set; }

}