using System;

using Newtonsoft.Json;

using Newtonsoft.Json.Serialization;

public class Program

{

    public static void Main()

    {

        string jsonString = @"{

          Id : 1,

          foo : null

          }";

        Console.WriteLine("Begin -- MissingMemberHandling.Ignore");

        var myObject = JsonConvert.DeserializeObject<ClassA>(jsonString, new JsonSerializerSettings

                                                             {

                                                                 Error = OnError,

                                                                 NullValueHandling = NullValueHandling.Ignore,

                                                                 MissingMemberHandling = MissingMemberHandling.Ignore,

                                                             });

​

        Console.WriteLine("End -- MissingMemberHandling.Ignore");

        Console.WriteLine("Begin -- MissingMemberHandling.Error");

        myObject = JsonConvert.DeserializeObject<ClassA>(jsonString , new JsonSerializerSettings

                                                         {

                                                             Error = OnError,

                                                             NullValueHandling = NullValueHandling.Ignore,

                                                             MissingMemberHandling = MissingMemberHandling.Error, // results in the error

                                                         });

        Console.WriteLine("End -- MissingMemberHandling.Error");

    }

    private static void OnError(object sender, ErrorEventArgs args)

        {

            Console.WriteLine(args.ErrorContext.Error.Message);

            args.ErrorContext.Handled = true;

        }

}

​

public class ClassA

    {

        public int Id { get; set; }

        public string SomeString { get; set; }

    }

​

​

​