public void AddPerson(Zadanie1Piotrek.PersonManager.Person person)
 {
     using (DatabaseEntities context = new DatabaseEntities())
     {
         context.People.Add(new Person()
         {
             FirstName = person.Imie,
             LastName = person.Nazwisko,
             Age = Convert.ToByte(person.Wiek),
             Pesel = person.Pesel,
             EditDate = DateTime.Now
         });
         context.SaveChanges();
     }
 }
 public List<Zadanie1Piotrek.PersonManager.Person> GetAllPersons()
 {
     List<Zadanie1Piotrek.PersonManager.Person> people = new List<Zadanie1Piotrek.PersonManager.Person>();
     
     using (DatabaseEntities context = new DatabaseEntities())
     {
         var dbList = context.People.ToList();
         foreach (var i in dbList)
         {
             Zadanie1Piotrek.PersonManager.Person person = new Zadanie1Piotrek.PersonManager.Person();
             person.Imie = i.FirstName;
             person.Nazwisko = i.LastName;
             person.Wiek = i.Age;
             person.Pesel = i.Pesel;
             people.Add(person);
         }
     }
     return people;
 }