public IEnumerable <ContactEntreprise> SearchContacts([FromQuery] string searchTerm) { if (!String.IsNullOrEmpty(searchTerm)) { var contactEntreprises = _formationService.GetContacts() .Where(i => i.Prenom.Contains(searchTerm) || i.Nom.Contains(searchTerm)) .Select(contact => new ContactEntreprise { ContactId = contact.Id, Contact = contact }).ToList(); return(contactEntreprises); } else { return(new List <ContactEntreprise>()); } }