using System;

using System.IO;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

​

public class Data

{

        public string assetName{get;set;}           //'assetName': 'avatar',

        public string id{get;set;}                  //'id': '-M4qRmfnFya7bC43Ujye',

        public string imageName{get;set;}           //'imageName': 'icon_avatar',

        public string name{get;set;}                //'name': 'Bob',

        public string objName{get;set;}             //'objName': 'Bobby',

        public string point{get;set;}               //'point': '-M4vZRY9vhKs65n5L_Gk',

        public string versionNumber{get;set;}       //'versionNumber': '3'

}

public class Program

{

    public static JToken DeserializeAndCombineDuplicates(JsonTextReader reader)

    {

        if (reader.TokenType == JsonToken.None)

        {

            reader.Read();

        }

​

        if (reader.TokenType == JsonToken.StartObject)

        {

            reader.Read();

            JObject obj = new JObject();

            while (reader.TokenType != JsonToken.EndObject)

            {

                string propName = (string)reader.Value;

                reader.Read();

                JToken newValue = DeserializeAndCombineDuplicates(reader);

​

                JToken existingValue = obj[propName];

                if (existingValue == null)

                {

                    obj.Add(new JProperty(propName, newValue));

                }

                else if (existingValue.Type == JTokenType.Array)

                {

                    CombineWithArray((JArray)existingValue, newValue);

                }

                else // Convert existing non-array property value to an array

                {

                    JProperty prop = (JProperty)existingValue.Parent;

                    JArray array = new JArray();

                    prop.Value = array;

                    array.Add(existingValue);

                    CombineWithArray(array, newValue);

                }

​

                reader.Read();

            }

            return obj;

        }

​

        if (reader.TokenType == JsonToken.StartArray)

        {

            reader.Read();

            JArray array = new JArray();

            while (reader.TokenType != JsonToken.EndArray)

            {

                array.Add(DeserializeAndCombineDuplicates(reader));

                reader.Read();

            }

            return array;

        }

​

        return new JValue(reader.Value);

    }   

    private static void CombineWithArray(JArray array, JToken value)

    {

        if (value.Type == JTokenType.Array)

        {

            foreach (JToken child in value.Children())

                array.Add(child);

        }

        else

        {

            array.Add(value);

        }

    }   

    public static void Main()

    {

        var json=@"

{

    '-M4qRmfIqhKdy643Ujye': {

        'assetName': 'avatar',

        'id': '-M4qRmfnFya7bC43Ujye',

        'imageName': 'icon_avatar',

        'name': 'Bob',

        'objName': 'Bobby',

        'point': '-M4vZRY9vhKs65n5L_Gk',

        'versionNumber': '3'

    },

    '-M4qRmfIqhKdy643Ujye': {

        'assetName': 'avatar',

        'id': '-M4qRmfnFya7bC43Ujye',

        'imageName': 'icon_avatar',

        'name': 'Bobfds',

        'objName': 'Bobbydsf',

        'point': '-M4vZRY9vhKs65n5L_Gk',

        'versionNumber': '3'

    },

    '-M4qRmfIqhKdy643Ujye': {

        'assetName': 'avatar',

        'id': '-M4qRmfnFya7bC43Ujye',

        'imageName': 'icon_avatar',

        'name': 'Bobfdsa',

        'objName': 'Bobbyfc',

        'point': '-M4vZRY9vhKs65n5L_Gk',

        'versionNumber': '3'

    }

}

";

        using (StringReader sr = new StringReader(json))

        using (JsonTextReader reader = new JsonTextReader(sr))

        {

            var parsed = DeserializeAndCombineDuplicates(reader).ToObject<Dictionary<string, Data[]>>();

            if(parsed!=null)

            {

                parsed

                    .ToList()

                    .ForEach(x=>Console.WriteLine("\r\nkey={0}\r\nvalues:\r\n{1}"

                                        , x.Key

                                        , string.Join("\r\n", x.Value

                                                      .Select(z=>string.Join("\t\t", z.name, z.id, z.objName))

                                                      .ToArray())));

            } else Console.WriteLine("No way, dude!");

        }

    }

}