public ActionResult Update(Pet update_Pet, int CustomerId)
 {
     if (CustomerId != 0)
     {
         _dataBase.CustomerPets.Add(new CustomerPet()
         {
             CustomerId = CustomerId, PetId = update_Pet.PetId
         });
     }
     _dataBase.Entry(update_Pet).State = EntityState.Modified;
     _dataBase.SaveChanges();
     return(RedirectToAction("Index"));
 }
 public ActionResult Update(Customer new_customer)
 {
     _dataBase.Entry(new_customer).State = EntityState.Modified;
     _dataBase.SaveChanges();
     return(RedirectToAction("Index"));
 }