private void frmThanhToan_Load(object sender, EventArgs e)
{
DataTable billDetail = BillDetailBUS.LoadAllExtendedBillDetails(billID);
billDetail.Columns[0].ColumnName = "ProductName";
billDetail.Columns[1].ColumnName = "UnitPrice";
billDetail.Columns[2].ColumnName = "Quantity";
billDetail.Columns[3].ColumnName = "Total";
HoaDon bill = BillBUS.GetBill(billID);
ReportParameter[] parameters = new ReportParameter[]
{
new ReportParameter("pThoiGianLap", bill.ThoiGianLap.ToString()),
new ReportParameter("pMaHoaDon", bill.MaHoaDon.ToString()),
new ReportParameter("pMaBan", tableID.ToString()),
new ReportParameter("pHoTen", employeeName)
};
reportViewer.LocalReport.SetParameters(parameters);
reportViewer.LocalReport.DataSources.Clear();
reportViewer.LocalReport.DataSources.Add(new ReportDataSource("DataSet1", billDetail));
reportViewer.RefreshReport();
}