Newtonsoft.Json/Src/Newtonsoft.Json.Tests/Documentation/Examples/DeserializeCustomCreationConverter.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Newtonsoft.Json.Converters;

namespace Newtonsoft.Json.Tests.Documentation.Examples
{
  public class DeserializeCustomCreationConverter
  {
    public class Person
    {
      public string FirstName { get; set; }
      public string LastName { get; set; }
      public DateTime BirthDate { get; set; }
    }

    public class Employee : Person
    {
      public string Department { get; set; }
      public string JobTitle { get; set; }
    }

    public class PersonConverter : CustomCreationConverter<Person>
    {
      public override Person Create(Type objectType)
      {
        return new Employee();
      }
    }

    public void Example()
    {
      string json = @"{
        ""Department"": ""Furniture"",
        ""JobTitle"": ""Carpenter"",
        ""FirstName"": ""John"",
        ""LastName"": ""Joinery"",
        ""BirthDate"": ""1983-02-02T00:00:00""
      }";

      Person person = JsonConvert.DeserializeObject<Person>(json, new PersonConverter());

      Console.WriteLine(person.GetType().Name);
      // Employee

      Employee employee = (Employee) person;

      Console.WriteLine(employee.JobTitle);
      // Capenter
    }
  }
}