private async Task queryBarReportByYear()
        {
            string salesYear = "2013";

            object[] yearMonth   = new object[12];
            object[] resultMonth = new object[12];

            //yearMonth[0] = subCategoryId;
            for (int month = 0; month < 12; month++)
            {
                yearMonth[month]   = salesYear + string.Format("{0:00}", month + 1);
                resultMonth[month] = string.Format("{0:00}", month + 1) + "/" + salesYear;
            }

            var master = new ProductCategorySalesReport();

            productCategorySalesReport = await _reportService.RetrieveProductCategorySalesReportAsync(master, yearMonth);

            ConvertDataForReport(productCategorySalesReport, resultMonth);
        }