/// <summary>
        /// 载入创建数据
        /// </summary>
        /// <returns></returns>
        public ActionResult Create()
        {
            string title = "请选择";

            ViewBag.ProductAttribute = _productattributeContract.SelectOption(title);
            IQueryable <ProductAttribute> listProductAttr = _productattributeContract.ProductAttributes;

            listProductAttr = listProductAttr.Where(x => x.ParentId == null);
            string strCode = CalculateCode(listProductAttr);

            ViewBag.CodeNum = strCode;
            return(PartialView());
        }