public IActionResult RemoveOrder(string id) { ChiTietGioHangViewModel query_ctdh = new ChiTietGioHangViewModel(db); query_ctdh.DeleteChiTietGioHangByCartId(id); GioHangViewModel query_dh = new GioHangViewModel(db); query_dh.DeleteGioHangById(id); return(RedirectToAction("Index")); }