PIbd-31_Danilov_V_V_COP-30/Components/CustomListBox.cs

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 Components
{
	public partial class CustomListBox : UserControl
	{
		private event EventHandler? _itemSelected;

		public CustomListBox()
		{
			InitializeComponent();
		}

		public void SetItems(List<string> items)
		{
			listBox.Items.AddRange(items.ToArray());
		}

		public void ClearList()
		{
			listBox.Items.Clear();
		}

		public string SelectedItem
		{
			get { return (string?)listBox.SelectedItem ?? string.Empty; }
			set 
			{
				int index = listBox.Items.IndexOf(value);
				if (index != -1)
				{
					listBox.SelectedIndex = index;
				}
			}
		}

		private void MainListBox_SelectedIndexChanged(object sender, EventArgs e)
		{
			_itemSelected?.Invoke(this, e);
		}
	}
}