public ActionResult AddStudentForm(Models.EleveViewModel formData) { if (formData.Nom != null && formData.Prenom != null && formData.DateNaissance != null && formData.ClassId >= 0) { // récupération du BusinessManager BusinessManager bm = BusinessManager.GetInstance(); GestionEleves.DAL.Entites.Eleve eleve = new DAL.Entites.Eleve { Nom = formData.Nom, Prenom = formData.Prenom, ClassId = formData.ClassId, DateNaissance = formData.DateNaissance }; int eleveId = bm.AddEleve(eleve); string url = $"/Student/Details/{eleveId}"; return(Redirect(url)); } return(View("AddStudent")); }