PIbd-32_Artamonova_T.V._COP_2/COP/UserCheckedListBox.cs

using DocumentFormat.OpenXml.Spreadsheet;

namespace COP
{
    public partial class UserCheckedListBox : UserControl
    {
        private event EventHandler? _selectedValueChanged;

        public UserCheckedListBox()
        {
            InitializeComponent();
        }

        public void FillList(List<string> items)
        {
            if (items.Count == 0 || items is null)
            {
                return;
            }
            checkedListBox.Items.Clear();
            checkedListBox.Items.AddRange(items.ToArray());
        }

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

        public string SelectedValue
        {
            get
            {
                return string.Join(";", checkedListBox.CheckedItems.Cast<string>());
            }
            set
            {
                if (!string.IsNullOrEmpty(value))
                {
                    string[] selectedValues = value.Split(';');
                    for (int i = 0; i < checkedListBox.Items.Count; i++)
                    {
                        checkedListBox.SetItemChecked(i, selectedValues.Contains(checkedListBox.Items[i].ToString()) || checkedListBox.GetItemChecked(i));
                    }
                }
            }
        }

        public event EventHandler SelectedValueChanged
        {
            add { _selectedValueChanged += value; }
            remove { _selectedValueChanged += value; }
        }

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