public HttpResponseMessage DeleteMaintenancePrice(string ProductPriceInfoOperateDTO) { ResultDTO <object> resultdto = new ResultDTO <object>(); try { ProductPriceInfoOperateDTO dto = TransformHelper.ConvertBase64JsonStringToDTO <ProductPriceInfoOperateDTO>(ProductPriceInfoOperateDTO); resultdto.SubmitResult = _IProductServices.DeleteMaintenancePrice(dto); } catch (Exception ex) { resultdto.SubmitResult = false; resultdto.Message = ex.Message; } HttpResponseMessage result = new HttpResponseMessage { Content = new StringContent(JsonConvert.SerializeObject(resultdto), System.Text.Encoding.GetEncoding("UTF-8"), "application/json") }; return(result); }