public EditModel(Person person)
 {
     Id = person.Id;
     FullName = person.FullName;
     Phone = person.Phone;
     Email = person.Email;
 }
        public Person ToPerson(Person person = null)
        {
            person = person ?? new Person();

            person.FullName = FullName;
            person.Email = Email;
            person.Phone = Phone;

            return person;
        }