public RedirectToRouteResult XoaMatHang(int iMaSP) { dbQLClothesDataContext db = new dbQLClothesDataContext(); var products = from table in db.SanPhams where table.MaSP == iMaSP select table; foreach (var prd in products) { db.SanPhams.DeleteOnSubmit(prd); } db.SubmitChanges(); return(RedirectToAction("Home", "ClothesStore", new { id = iMaSP })); }