public ActionResult Save(ProductCategory oProductCategory)
        {
            GlobalSession.SessionIsAlive(Session, Response);
            if (oProductCategory.ProductCategoryID <= 0)
            {
                _oProductCategory = _oProductCategoryService.IUD(oProductCategory, EnumDBOperation.Insert, (int)Session[GlobalSession.UserID]);
            }
            else
            {
                _oProductCategory = _oProductCategoryService.IUD(oProductCategory, EnumDBOperation.Update, (int)Session[GlobalSession.UserID]);
            }

            JavaScriptSerializer serializer = new JavaScriptSerializer();
            string sjson = serializer.Serialize(_oProductCategory);

            return(Json(sjson, JsonRequestBehavior.AllowGet));
        }