public override bool UpdateItem(ContentItem item, Control editor)
		{
			TextBox tb = (TextBox)editor;
			string[] rows = tb.Text.Split(Environment.NewLine.ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
			for (int i = item.Children.Count - 1; i >= 0; --i)
			{
				int index = Array.FindIndex(rows, delegate(string row)
													  {
														  return row == item.Children[i].Title;
													  }
					);
				if (index < 0)
					Context.Persister.Delete(item.Children[i]);
			}
			for (int i = 0; i < rows.Length; i++)
			{
				ContentItem child = FindChild(item, rows[i]);
				if (child == null)
				{
					child = new Option();
					child.Title = rows[i];
					child.AddTo(item);
				}
				child.SortOrder = i;

				editor.RegisterItemToSave(child);
			}

			return true;
		}