using System;

using Newtonsoft.Json;

using Newtonsoft.Json.Serialization;

public class Program

{

    public static void Main()

    {

        string jsonString = @"{

          Id : 1,

          boolProp : true

          }";

        string jsonString1 = @"{

          Id : 1,

          boolProp : false

          }";

        string jsonString2 = @"{

          Id : 1

          }";

        Console.WriteLine("Begin -- jsonString");

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

                                                             {

                                                                 Error = OnError,

                                                                 NullValueHandling = NullValueHandling.Ignore,

                                                             });

        // If there is any error, the OnError should be triggered, and should write the error message.

​

        Console.WriteLine("End -- jsonString");

        Console.WriteLine("Begin -- jsonString1");

        myObject = JsonConvert.DeserializeObject<ClassA>(jsonString1, new JsonSerializerSettings

                                                             {

                                                                 Error = OnError,

                                                                 NullValueHandling = NullValueHandling.Ignore,

                                                             });

​

        Console.WriteLine("End -- jsonString1");

        Console.WriteLine("Begin -- jsonString2");

        myObject = JsonConvert.DeserializeObject<ClassA>(jsonString2, new JsonSerializerSettings

                                                             {

                                                                 Error = OnError,

                                                                 NullValueHandling = NullValueHandling.Ignore,

                                                             });

​

        Console.WriteLine("End -- jsonString2");

    }

    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 bool? boolProp { get; set; }

    }

​

​

​