private void DeleteOperation()
{
int id = -1;
while (id < 0)
{
id = view.EnterId();
}
if (id < 0)
{
throw new Exception("Wrong id");
}
switch (view.entity)
{
case Entity.Room:
roomDAO.Delete(id);
break;
case Entity.Guest:
guestDAO.Delete(id);
break;
case Entity.Booking:
bookingDAO.Delete(id);
break;
}
view.Success();
}