public ActionResult Packages(string id) { Models.PackageModel v = new Models.PackageModel(); if (id != null) { int days = Convert.ToInt32(id); v.Voli = PackageHelper.GetAllPackage().Where(x => x.Days <= days).OrderBy(X => X.PackagePrice).ToList(); } else { v.Voli = PackageHelper.GetAllPackage().OrderBy(X => X.PackagePrice).ToList(); } return(View(v)); }