using System;

using Newtonsoft.Json;

public class Program

{

    public static void Main()

    {

        string json1 = @"{

            'field1': '123456789012345',

            'specifications': {

                'name1': 'HFE1'

            }

        }";

​

        DeserializeAndDump(json1);

​

        string json2 = @"{

            'field1': '1234567890abcde',

            'specifications': {

                'name2': 'HFE2'

            }

        }";

​

        DeserializeAndDump(json2);

    }

    private static void DeserializeAndDump(string json)

    {

        var obj = JsonConvert.DeserializeObject<ClassToDeserialize>(json);

        Console.WriteLine("Vin: " + obj.Vin);

        Console.WriteLine("Specifications: " + obj.Specifications.CodeModel);

        Console.WriteLine();

    }

}

​

​

public class Specifications

{

    [JsonProperty("name1")]

    public string CodeModel { get; set; }

​

    [JsonProperty("name2")]

    private string CodeModel2 { set { CodeModel = value; } }

}

​

public class ClassToDeserialize

{

    [JsonProperty("field1")]

    public string Vin { get; set; }

​

    [JsonProperty("specifications")]

    public Specifications Specifications { get; set; }        

}