public LivroController(LivrosManager livrosManager, ListaManager listaManager, UserManager <ApplicationUser> userManager)
 {
     _livrosManager = livrosManager;
     _userManager   = userManager;
     _listaManager  = listaManager;
 }
        public JsonResult BuscarEnListado(string query)
        {
            IEnumerable <string> arboles = ListaManager.GetArboles(query);

            return(Json(arboles, JsonRequestBehavior.AllowGet));
        }