public ActionResult UpdateFederation(int id) { Federation federation = new Federation(); List <CPays> listP = new CPays().GetListPays(); CPays pays = null; federation = federation.GetFederation(id); foreach (CPays P in listP) { if (P.Pays == federation.PaysFederation) { pays = P; } } listP.Insert(0, pays); Session["listP"] = new SelectList(listP, "Id", "Pays"); return(View(federation)); }