public void Execute(object parameter)
        {
            var personManager = new PersonManager();

            if (parameter is Person person && personManager.Add(new Person
            {
                LastName = person.LastName,
                Name = person.Name,
                Email = person.Email,
                DateOfBirth = person.DateOfBirth
            }))
            {
                MessageBox.Show("Person Add Successful !");
            }
        }