public JsonResult Create(OnlinePurchaseProductDto dto)
        {
            dto.EndDate = dto.EndDate.AddHours(23).AddMinutes(59).AddSeconds(59);
            OperationResult oper = _onlinePurchaseProductContract.Insert(dto);

            if (oper.ResultType == OperationResultType.Success)
            {
                CheckResultEdo edo = new CheckResultEdo();
                edo.UniqueCode = dto.UniqueCode;
                WriteCookie(edo);
            }
            return(Json(oper));
        }