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;

namespace Popis
{
    public partial class Form1 : Form
    {
        List<string> popis = new List<string>();
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            button2.Enabled = false;
        }

        private void button2_Click(object sender, EventArgs e)
        {
            popis.RemoveAt(listBox1.SelectedIndex);
            listBox1.Items.Clear();
            foreach (string i in popis)
            {
                listBox1.Items.Add(i);
            }

            if (listBox1.Items.Count == 0)
            {
                button2.Enabled = false;
            }
        }

        private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
            bool empty = false;
            if (textBox1.Text == "")
            {
                MessageBox.Show("Niste unijeli artikl.", "Pogreška!");
                empty = true;
            }
            else
                empty = false;

            if (!empty)
            {
                popis.Add(textBox1.Text);
                listBox1.Items.Add(textBox1.Text);
                button2.Enabled = true;
                textBox1.Text = "";
            }

        }

        private void button3_Click(object sender, EventArgs e)
        {
            popis.Sort();
            listBox1.Items.Clear();
            foreach (string i in popis)
            {
                listBox1.Items.Add(i);
            }
        }

        private void button4_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }
    }
}