/// <summary>
 /// Gets the utente list ordered by the nhs number, readies it to send to the front end layer
 /// </summary>
 /// <returns></returns>
 public List <Utente> OrderUtenteByNhsNumber()
 {
     if (Utentes.OrderByNhsNumber() == true)
     {
         return(Utentes.utentes);
     }
     else
     {
         throw new Exception();
     }
 }