public bool updateUser(User updateUser)
 {
     using (var db = new RentThingsContext())
     {
         db.Users.AddOrUpdate(updateUser);
         db.SaveChanges();
         return(true);
     }
 }
 public bool RemoveUserById(int id)
 {
     using (var db = new RentThingsContext())
     {
         var user = GetUserById(id);
         if (user == null)
         {
             return(false);
         }
         user.IsDeleted = true;
         db.Users.AddOrUpdate(user);
         db.SaveChanges();
         return(true);
     }
 }