OpenTween.MyLists.ListsCheckedListBox_ItemCheck C# (CSharp) Method

        private async void ListsCheckedListBox_ItemCheck(object sender, ItemCheckEventArgs e)
        {
            // 他のイベント等で操作中の場合は無視する
            if (!this.Enabled)
                return;

            using (ControlTransaction.Disabled(this))
            {
                var list = (ListElement)this.ListsCheckedListBox.Items[e.Index];

                if (e.CurrentValue == CheckState.Unchecked)
                    await this.AddToList(list);
                else
                    await this.RemoveFromList(list);
            }
        }