水晶报表子报表没有表异常

Question

This may be a common question, but I wasn't able to find a solution after googling. I am using Crystal Report with C# to do reporting. I'm having some problems with sub reports: I want to create a Monthly report for Order and OrderDetail. I did it as per the following code, but when run, it throws the Exception "Report has no table" on the sub-report. Can you help me?

RpOrder rpt = new RpOrder();
RpOrderDetail sub = new RpOrderDetail();
DataSet dsOrder = new dsOrder();            
DataSet dsOrderDetail = new dsOrderDetail();
dsOrder.Tables.Add(new DataTable());
dsOrder.Tables.Add(new DataTable());
dsOrderDetail.Tables.Add(new DataTable());

foreach(Order nx in listNX )
{
    dsOrder.Tables[0].Rows.Add(
        new object[]{nx.NgayOrder,nx.GetIsNhapString(),nx.NguoiGiaoHang,nx.TongTien}
    );
    foreach(OrderDetail ct in nx.ChiTiets)
    {
        dsOrder.Tables[1].Rows.Add(new object []{
            ct.HangHoa.TenHangHoa,
            ct.HangHoa.MaHang,
            ct.DonGia,
            ct.SoLuong,
            ct.SoLuong * ct.DonGia
        });
    }
}           
rpt.SetDataSource(dsOrder.Tables[0]);
rpt.Subreports[0].SetDataSource(dsOrder.Tables[1]);
crystalReportViewer1.ReportSource = rpt;

Answer 1

Did you try this:

rpt.SetDataSource(dsOrder);

?

If the line above doesn't work check the records in the tables and try to turn the order, set subreport first.

Answer 2

如果在进行更改之前将子报表添加到主报表中，则转到主报表，右键单击子报表，然后单击“重新导入子报表”