using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Runtime.Serialization.Formatters;

using System.IO;

using System.Data;

using System.ComponentModel.DataAnnotations;

using System.Globalization;

using System.Reflection;

​

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using Newtonsoft.Json.Converters;

using Newtonsoft.Json.Serialization;    

​

using NUnit.Framework; // Throws NUnit.Framework.AssertionException

​

//https://stackoverflow.com/questions/53641774/deserializing-json-with-dynamic-property-name

​

    public class TestParse

    {

        public Note Notes { get; set; }

    }

​

    public class Note

    {

        [JsonConverter(typeof(DictionaryToDictionaryListConverter<string, Source>))]

        public Dictionary<string, Source> Data { get; set; }

    }

​

    public class Source

    {

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

    }

​

    public class Item

    {

        public string Page { get; set; }

        public string Comment { get; set; }

    }

​

    public class DictionaryToDictionaryListConverter<TKey, TValue> : JsonConverter 

    {

        [ThreadStatic]

        static bool disabled;

​

        // Disables the converter in a thread-safe manner.

        bool Disabled { get { return disabled; } set { disabled = value; } }

​

        public override bool CanWrite { get { return !Disabled; } }

​

        public override bool CanRead { get { return !Disabled; } }

​

        public override bool CanConvert(Type objectType)

        {

            if (Disabled)

                return false;

            return typeof(IDictionary<TKey, TValue>).IsAssignableFrom(objectType);

        }

​

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

        {

            if (reader.TokenType == JsonToken.Null)

                return null;

            var token = JToken.Load(reader);

            var dict = (IDictionary<TKey, TValue>)(existingValue as IDictionary<TKey, TValue> ?? serializer.ContractResolver.ResolveContract(objectType).DefaultCreator());

            if (token.Type == JTokenType.Array)

            {

                foreach (var item in token)

                    using (var subReader = item.CreateReader())

                        serializer.Populate(subReader, dict);

            }

            else if (token.Type == JTokenType.Object)

            {

                using (var subReader = token.CreateReader())

                    serializer.Populate(subReader, dict);

​

            }

            return dict;

        }

​

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

        {

            var dict = (IDictionary<TKey, TValue>)value;

            // Prevent infinite recursion of converters

            using (new PushValue<bool>(true, () => Disabled, val => Disabled = val))

            {

                serializer.Serialize(writer, dict.Select(p => new[] { p }.ToDictionary(p2 => p2.Key, p2 => p2.Value)));

            }

        }

    }

​

    public struct PushValue<T> : IDisposable

    {

        Action<T> setValue;

        T oldValue;

​

        public PushValue(T value, Func<T> getValue, Action<T> setValue)

        {

            if (getValue == null || setValue == null)

                throw new ArgumentNullException();

            this.setValue = setValue;

            this.oldValue = getValue();

            setValue(value);

        }

​

        // By using a disposable struct we avoid the overhead of allocating and freeing an instance of a finalizable class.

        public void Dispose()

        {

            if (setValue != null)

                setValue(oldValue);

        }

    }

​

    class TestClass

    {

        public static void Test()

        {

            var json = GetJson();

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

​

            var settings = new JsonSerializerSettings

            {

                ContractResolver = new CamelCasePropertyNamesContractResolver(),

            };

            var json2 = JsonConvert.SerializeObject(root, Formatting.Indented, settings);

            Console.WriteLine("De-serialized and re-serialized {0}", root);

            Console.WriteLine(json2);

            Assert.IsTrue(JToken.DeepEquals(JToken.Parse(json), JToken.Parse(json2)));

        }   

        static string GetJson()

        {

            var json = @"{

    ""notes"": {

        ""data"": [{

                ""book"": {

                    ""items"": [{

                            ""page"": ""page 1"",

                            ""comment"": ""Some notes""

                        },

                        {

                            ""page"": ""page 1"",

                            ""comment"": ""Some notes""

                        }

                    ]

                }

            },

            {

                ""journal"": {

                    ""items"": [{

                            ""page"": ""page 1"",

                            ""comment"": ""Some notes""

                        },

                        {

                            ""page"": ""page 1"",

                            ""comment"": ""Some notes""

                        }

                    ]

                }

            },

            {

                ""magazine"": {

                    ""items"": [{

                            ""page"": ""page 1"",

                            ""comment"": ""Some notes""

                        },

                        {

                            ""page"": ""page 1"",

                            ""comment"": ""Some notes""

                        }

                    ]

                }

            }

        ]

    }

}

";

            return json;

        }

    }

​

    public class Program

    {

        public static void Main()

        {

            Console.WriteLine("Environment version: " + Environment.Version);

            Console.WriteLine("Json.NET version: " + typeof(JsonSerializer).Assembly.FullName);

            Console.WriteLine();

​

            try

            {

                TestClass.Test();

            }

            catch (Exception ex)

            {

                Console.WriteLine("Failed with unhandled exception: ");

                Console.WriteLine(ex);

                throw;

            }

        }

    }

​