// result = result.Union(_checked.Select(t => new TitleValue { Title = t, Value = t, State = 3 })).ToList();
// }
// }
// //未被选择
// if (result != null || result.Count > 0)
// department = department.Except(result.Select(t => t.Title)).ToList();
// result = result.Union(department.Select(t => new TitleValue { Title = t, Value = t, State = 2 })).OrderBy(t => t.State).ThenBy(t => t.Title).ToList();