#region License // Copyright (c) 2007 James Newton-King // // Permission is hereby granted, free of charge, to any person // obtaining a copy of this software and associated documentation // files (the "Software"), to deal in the Software without // restriction, including without limitation the rights to use, // copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following // conditions: // // The above copyright notice and this permission notice shall be // included in all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES // OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, // WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR // OTHER DEALINGS IN THE SOFTWARE. #endregion using System; using System.Collections.Generic; using System.Text; #if DNXCORE50 using Xunit; using Test = Xunit.FactAttribute; using Assert = Newtonsoft.Json.Tests.XUnitAssert; #else using NUnit.Framework; #endif namespace Newtonsoft.Json.Tests.Documentation.Samples.Serializer { [TestFixture] public class SerializeTypeNameHandling : TestFixtureBase { #region Types public abstract class Business { public string Name { get; set; } } public class Hotel : Business { public int Stars { get; set; } } public class Stockholder { public string FullName { get; set; } public IList Businesses { get; set; } } #endregion [Test] public void Example() { #region Usage Stockholder stockholder = new Stockholder { FullName = "Steve Stockholder", Businesses = new List { new Hotel { Name = "Hudson Hotel", Stars = 4 } } }; string jsonTypeNameAll = JsonConvert.SerializeObject(stockholder, Formatting.Indented, new JsonSerializerSettings { TypeNameHandling = TypeNameHandling.All }); Console.WriteLine(jsonTypeNameAll); // { // "$type": "Newtonsoft.Json.Samples.Stockholder, Newtonsoft.Json.Tests", // "FullName": "Steve Stockholder", // "Businesses": { // "$type": "System.Collections.Generic.List`1[[Newtonsoft.Json.Samples.Business, Newtonsoft.Json.Tests]], mscorlib", // "$values": [ // { // "$type": "Newtonsoft.Json.Samples.Hotel, Newtonsoft.Json.Tests", // "Stars": 4, // "Name": "Hudson Hotel" // } // ] // } // } string jsonTypeNameAuto = JsonConvert.SerializeObject(stockholder, Formatting.Indented, new JsonSerializerSettings { TypeNameHandling = TypeNameHandling.Auto }); Console.WriteLine(jsonTypeNameAuto); // { // "FullName": "Steve Stockholder", // "Businesses": [ // { // "$type": "Newtonsoft.Json.Samples.Hotel, Newtonsoft.Json.Tests", // "Stars": 4, // "Name": "Hudson Hotel" // } // ] // } // for security TypeNameHandling is required when deserializing Stockholder newStockholder = JsonConvert.DeserializeObject(jsonTypeNameAuto, new JsonSerializerSettings { TypeNameHandling = TypeNameHandling.Auto }); Console.WriteLine(newStockholder.Businesses[0].GetType().Name); // Hotel #endregion Assert.AreEqual("Hotel", newStockholder.Businesses[0].GetType().Name); } } }