kolo5

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    [Serializable()]
    public class MojaKlasa
    {
        public int A = -1;
        public static int B = 0;

        public MojaKlasa() { A += 5; }
        [OnSerializing()]
        internal void OnSerializingMethod(StreamingContext context)
        {
            A += 2;
            B += A;
            Console.WriteLine("OnSerializingMethod: {0} {1}", A, B);
        }
        [OnSerialized()]
        internal void OnSerializedMethod(StreamingContext context)
        {
            A += 3;
            B -= A;
            Console.WriteLine("OnSerializedMethod: {0} {1}", A, B);
        }
        [OnDeserializing()]
        internal void OnDeserializingMethod(StreamingContext context)
        {
            A += 4;
            B += A;
            Console.WriteLine("OndDeSerializingMethod: {0} {1}", A, B);
        }
        [OnDeserialized()]
        internal void OnDeserializedMethod(StreamingContext context)
        {
            A += 5;
            B -= A;
            Console.WriteLine("OndDeSerializedMethod: {0} {1}", A, B);
        }
    }
    class Test
    {
        static void Main(string[] args)
        {
            MojaKlasa obj = new MojaKlasa();
            BinaryFormatter formater = new BinaryFormatter();
            FileStream fs = null;
            try
            {
                fs = new FileStream("dane.dat", FileMode.Create);
                formater.Serialize(fs, obj);
            }
            finally
            {
                if (fs != null)
                    fs.Close();
            }
            try
            {
                fs = new FileStream("dane.dat", FileMode.Open);
                obj = (MojaKlasa)formater.Deserialize(fs);
            }
            finally
            {
                if (fs != null)
                    fs.Close();
            }
            Console.ReadKey();

        }
    }
}