Serialize

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using LibraryPrintEdition;
using System.Windows.Forms;
using System.Runtime.Serialization.Formatters.Binary;
using System.IO;
using System.Xml.Serialization;
using System.Text.Json;
using System.Threading;


namespace laba_1__4sem_
{
    public partial class Form1 : Form
    {
        List<PrintEdition> list = new List<PrintEdition>();
        List<PrintEdition> list2 = new List<PrintEdition>() { new Journal("dfdf", 2, 14, 2, 5), new Book() };
        public Form1()
        {
            InitializeComponent();
            list.Add(new Journal("Колобок", 15, 100, 25, 5));
            list.Add(new Book("Алиса в стране чудес", 15, 1000, 345, true));
            list.Add(new CopyBook("Учим Английский", 5, 100, 200, 5));
            foreach (PrintEdition pe in list)
            {
                listBox1.Items.Add(pe);
            }
        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {

        }

        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {

        }

        private void SerializeButton_Click(object sender, EventArgs e)
        {

            string fileName = filenameTextBox.Text;
            if(comboBox1.Text == "Двоичная сериализация")//Двоичная сериализация
            {
                fileName += ".dat";
                BinaryFormatter binFormat = new BinaryFormatter();

                using(Stream fStream = new FileStream(fileName, FileMode.Create, FileAccess.Write, FileShare.None))
                {
                    binFormat.Serialize(fStream, list);
                }
            }
            else if(comboBox1.Text == "XML")//XML
            {
                fileName += ".xml";
                using(var sw = new StreamWriter(fileName))
                {
                    XmlSerializer xmlFormat = new XmlSerializer(typeof(List<PrintEdition>));
                    xmlFormat.Serialize(sw, list2);
                }
                //using (Stream fStream = new FileStream(fileName, FileMode.Create, FileAccess.Write, FileShare.None))
                //{
                //    XmlSerializer xmlFormat = new XmlSerializer(typeof(List<PrintEdition>));
                //    xmlFormat.Serialize(fStream, list2);
                //}

                //XmlSerializer xmlSerializer = new XmlSerializer(typeof(List<PrintEdition>));
                //using (FileStream fs = new FileStream("serializexml.xml", FileMode.OpenOrCreate))
                //{
                //    xmlSerializer.Serialize(fs, list2);
                //}
            }
            else if(comboBox1.Text == "JSON")//JSON
            {
                //fileName += ".json";
                //using (StreamWriter fs = new StreamWriter(fileName))
                //{
                //    JsonSerializer jsonSerializer = new JsonSerializer();
                //    jsonSerializer.Serialize(fs, list2);
                //    Console.WriteLine("Data has been saved to file");
                //}
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            OpenFileDialog ofd = new OpenFileDialog();
            ofd.ShowDialog();
            List<PrintEdition> newList = new List<PrintEdition>();
            if(ofd.FileName.Contains(".dat"))//Двоичная десериализация
            {
                BinaryFormatter binFormat = new BinaryFormatter();

                // Read the list from the binary file.
                using (Stream fStream = File.OpenRead(ofd.FileName))
                {
                    newList = (List<PrintEdition>)binFormat.Deserialize(fStream);
                    foreach(var item in newList)
                    {
                        listBox2.Items.Add(item);
                        Thread.Sleep(1000);
                    }
                }
            }
            else if(ofd.FileName.Contains(".xml"))//XML десериализация
            {
                XmlSerializer xmlSerializer = new XmlSerializer(typeof(List<PrintEdition>));
                using (Stream fStream = File.OpenRead(ofd.FileName))
                {
                    list2 = xmlSerializer.Deserialize(fStream) as List<PrintEdition>;
                }
                listBox2.Items.Clear();
                foreach (var item in list2)
                {
                    listBox2.Items.Add(item);
                }
                Invalidate();
            }
            else if(ofd.FileName.Contains(".json"))//JSON десериализация
            {
                using (StreamReader sr = new StreamReader(ofd.FileName))
                {
                    var json = sr.ReadToEnd();
                    string jsonString = File.ReadAllText(ofd.FileName);

                    list2 = JsonSerializer.Deserialize<List<PrintEdition>>(json);

                }
                listBox2.Items.Clear();
                foreach (var item in list2)
                {
                    listBox2.Items.Add(item);
                }
                Invalidate();
            }
        }
    }
}