protected override void OnActionExecuting(ActionExecutingContext filterContext)
        {
            base.OnActionExecuting(filterContext);
            ViewBag.Title += " - Sản phẩm";
            //đặt activetab cố định cho controller này
            this._current_activetab();
            //load những dữ liệu common

                //active only
                NhomSanPhamController ctr_nhom = new NhomSanPhamController();
                ViewBag.NhomSanpham2_ListAll = ctr_nhom.timkiem();
                //active only
                HangSXController ctr_hangsx = new HangSXController();
                ViewBag.HangSX_ListAll = ctr_hangsx.timkiem();
                //
                KichThuocController ctr_kichthuoc = new KichThuocController();
                ViewBag.KichThuoc_ListAll = ctr_kichthuoc.timkiem();
                //
                MauSacController ctr_mausac = new MauSacController();
                ViewBag.MauSac_ListAll = ctr_mausac.timkiem();
                ViewBag.ChiTietSP = new ChiTietSP();//may be override by action
        }
 public ActionResult Index(int page=1)
 {
     //check
     if (!this._nhanvien_permission.Contains("mausac_view"))
     {
         return this._fail_permission("mausac_view");
     }
     //Chọn danh sách để hiển thị theo cookies tìm kiếm
     MauSacController ctr = new MauSacController();
     ViewBag.mausac_List = ctr.timkiem(
         timkiem_mausac["id"],
         timkiem_mausac["giatri"],
         timkiem_mausac["mota"],
         timkiem_mausac["active"], "id", true, 0, -1
         );
     //set search cookies
     ViewBag.timkiem_mausac = this.timkiem_mausac;
     ViewBag.Title += " - Quản lý";
     return View();
 }