C# (CSharp) IManagerDA.GetAll примеры использования

Пример #1

 private bool ExistPerson(Person person)
 {
     return(ManagerDA.GetAll().Any(x => x.Email == person.Email || x.Phone == person.Phone));
 }

Пример #2

 public IEnumerable <Homework> GetAll()
 {
     return(ManagerDA.GetAll());
 }