public Commande_marketer ajouter(Commande_marketer u) { if (u == null) { u = new Commande_marketer(); } try { db.creerCommande_marketer(u.quantite, u.codeMARKETER, u.codeFOURNISSEUR, u.codePRODUIT, u.codeU); } catch (Exception ex) { u.Produit.designation = ex.StackTrace; } return(u); }