public ActionResult AfficherSelections(string Id)
        {
            if (!String.IsNullOrEmpty(Id))
            {
                String orderby = "";

                if (Session["SortBy_Selection"] != null)
                   orderby = (String)Session["SortBy_Selection"] + " " + (String)Session["SortOrder"];

                BieresTable bieres = new BieresTable(Session["Database"]);
                bieres.SelectFromSelection(Id, orderby);

                BarsTable bars = new BarsTable(Session["Database"]);
                bars.SelectByID(Id);
                Session["Bar"] = bars;

                SelectionTable selection = new SelectionTable(Session["Database"]);
                Session["ListePrix"] = selection.ListPrix(Id,orderby);

                return View(bieres.ToList());
            }
            else
                return RedirectToAction("ListerBars", "Bars");
        }