using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Component_1
{
	public partial class List_with_choice : UserControl
	{
		private event EventHandler? _checkedlistChanged;
		private event Action? _errorOccured;
		public string Error { get; private set; }

		public String Element
		{
			get
			{
				if (checkedListBox1.SelectedItem != null) return checkedListBox1.SelectedItem.ToString();
				else return string.Empty;
			}
			set
			{
				checkedListBox1.SelectedItem = value;
			}
		}

		public event EventHandler Checkedlist
		{
			add { _checkedlistChanged += value; }
			remove { _checkedlistChanged -= value; }
		}
		public event Action AnErrorOccurred
		{
			add { _errorOccured += value; }
			remove { _errorOccured -= value; }
		}

		public List_with_choice()
		{
			InitializeComponent();
			Error = string.Empty;
		}

		public void Fill_List(string str) //метод заполнения списка
		{
			if (str == null)
			{
				MessageBox.Show("Вы не ввели строку");
				return;
			}

			string[] list = str.Split(' ');
			foreach (string s in list)
			{
				checkedListBox1.Items.Add(s);
			}
		}
		public void Clean_List() //метод очистки списка
		{
			checkedListBox1.Items.Clear();
		}
		private void button_Load_Click(object sender, EventArgs e)
		{
			string value = "";
			if (InputBox("Заполнение списка", "Пожалуйста введите строку", ref value) == DialogResult.OK)
			{
				try
				{
					Fill_List(value);
					_checkedlistChanged?.Invoke(this, e);
				}
				catch (Exception ex)
				{
					Error = ex.Message;
					_errorOccured?.Invoke();
				}
			}
		}

		private void checkedListBox1_SelectedIndexChanged(object sender, EventArgs e)
		{

		}
		public static DialogResult InputBox(string title, string promptText, ref string value)//диалоговое окно
		{
			Form form = new Form();
			Label label = new Label();
			TextBox textBox = new TextBox();
			Button buttonOk = new Button();
			Button buttonCancel = new Button();
			form.Text = title;
			label.Text = promptText;
			buttonOk.Text = "OK";
			buttonCancel.Text = "Cancel";
			buttonOk.DialogResult = DialogResult.OK;
			buttonCancel.DialogResult = DialogResult.Cancel;
			label.SetBounds(36, 36, 372, 13);
			textBox.SetBounds(36, 86, 700, 20);
			buttonOk.SetBounds(228, 160, 160, 60);
			buttonCancel.SetBounds(400, 160, 160, 60);
			label.AutoSize = true;
			form.ClientSize = new Size(796, 307);
			form.FormBorderStyle = FormBorderStyle.FixedDialog;
			form.StartPosition = FormStartPosition.CenterScreen;
			form.MinimizeBox = false;
			form.MaximizeBox = false;
			form.Controls.AddRange(new Control[] { label, textBox, buttonOk, buttonCancel });
			form.AcceptButton = buttonOk;
			form.CancelButton = buttonCancel;
			DialogResult dialogResult = form.ShowDialog();
			value = textBox.Text;
			return dialogResult;
		}
		private void button_Clean_Click(object sender, EventArgs e)
		{
			Clean_List();
		}
	}
}