using Newtonsoft.Json;

using Newtonsoft.Json.Serialization;

using System;

​

​

​

    public class ClassA

    {

        public int Id { get; set; }

        public string SomeString { get; set; }

        public int? SomeInt { get; set; }

    }

​

    public class Program

    {

        static void Main(string[] args1)

        {

            const string str = "{'Id':5}";

            Console.WriteLine("123");

            var myObject = JsonConvert.DeserializeObject<ClassA>(str

                , new JsonSerializerSettings

                {

                    Error = OnError,

                    MissingMemberHandling = MissingMemberHandling.Error,

                });

​

            Console.ReadKey();

        }

​

        //Case 1.

        private static void OnError(object sender, ErrorEventArgs args)

        {

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

            args.ErrorContext.Handled = true;

        }

    }

​