delegaty_okienkowo

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 System.Windows.Forms;
using System.IO;

namespace zad_3
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

        }
        static FileStream fs;
        static StreamWriter sw;
        public delegate void Del(string str, string str2,decimal dec);
        public delegate void Del2();
        Del HandlerZapis = delegate (string imie, string nazwisko, decimal rok)
        {
            fs = new FileStream("D:\\!!!Studia\\Semestr 4\\Moje\\Informatyka\\Labki\\lab_7\\message3.txt", FileMode.Append, FileAccess.Write);
            sw = new StreamWriter(fs);



            sw.WriteLine(imie + " " + nazwisko + " " + " " + rok);
            sw.Flush();
            sw.Close();
            fs.Close();
        };


        Del2 HandlerOdczyt = delegate ()
        {
            StreamReader sr = new StreamReader("D:\\!!!Studia\\Semestr 4\\Moje\\Informatyka\\Labki\\lab_7\\message3.txt");
            String line = sr.ReadToEnd();
            sr.Close();
            MessageBox.Show(line);


        };

        private void PrzyciskZapisz_Click(object sender, EventArgs e)
        {
            HandlerZapis(Imie.Text, Nazwisko.Text, Rok.Value);
        }


        private void PrzyciskOdczyt_Click_1(object sender, EventArgs e)
        {
            HandlerOdczyt();
        }


    }
}