public IHttpActionResult GetProductType(RequestGetProductType request)
        {
            var tokenResult = IdentityValid.ValidateToken(request.Token);

            if (!tokenResult.IsSuccess)
            {
                return(Json(tokenResult));
            }

            var bll    = new ProductTypeBLL();
            var entity = bll.LoadAll(o => o.UserName == tokenResult.userName);

            //if (request.ParentProductTypeId > 0)
            //{
            //    entity = entity.Where(o => o.ParentProductTypeId == request.ParentProductTypeId);
            //}
            return(Json <List <ProductType> >(entity.ToList()));
        }