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 WindowsFormsApplication2
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }





        private void radioButton1_CheckedChanged(object sender, EventArgs e)
        {
            if (radioButton1.Checked == true)
            {
                string input = radioButton1.Text;
                File.AppendAllText("zapis.txt", input + Environment.NewLine);
                StreamWriter zapis = new StreamWriter("A");
                zapis.Close();


            }
        }

        private void radioButton2_CheckedChanged(object sender, EventArgs e)
        {
            if (radioButton2.Checked == true)
            {
                string input = radioButton2.Text;
                File.AppendAllText("zapis.txt", input + Environment.NewLine);
                StreamWriter zapis = new StreamWriter("B");
                zapis.Close();
            }
        }

        private void radioButton3_CheckedChanged(object sender, EventArgs e)
        {
            if (radioButton3.Checked == true)
            {
                string input = radioButton3.Text;
                File.AppendAllText("zapis.txt", input + Environment.NewLine);
                StreamWriter zapis = new StreamWriter("C");
                zapis.Close();
            }
        }

        private void button1_Click_1(object sender, EventArgs e)
        {
            string[] lines = File.ReadAllLines("zapis.txt");
            this.listBox1.Items.Clear();
            foreach (string line in lines)
            {
                this.listBox1.Items.Add(line);
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {

            listBox1.Items.Clear();


        }
    }
}