protected void ExportButton_Click(Object sender, EventArgs e)
{
DateTime fromDate = StartDate.SelectedStartDate;
DateTime toDate = EndDate.SelectedEndDate;
IList <CouponSummary> couponSummaries = ReportDataSource.GetSalesByCoupon(fromDate, toDate, string.Empty, "OrderTotal DESC");
GenericExportManager <CouponSummary> exportManager = GenericExportManager <CouponSummary> .Instance;
GenericExportOptions <CouponSummary> options = new GenericExportOptions <CouponSummary>();
options.CsvFields = new string[] { "CouponCode", "OrderCount", "OrderTotal" };
options.ExportData = couponSummaries;
options.FileTag = string.Format("SALES_BY_COUPON(from:_{0}_to_{1})", fromDate.ToShortDateString(), toDate.ToShortDateString());
exportManager.BeginExport(options);
}
