Problems with ReportDocument and multi-table dataset...

Question

Hi,
First post here and hoping someone can help with me with this problem.
I have an ASP.NET app running using CR 2008 Basic to produce invoices - these are fairly complex and use multiple tables - data used is provided in lists and they work fine when displayed/printed/exported from the viewer.
My client now wants the ability to batch print these so I'm trying to develop a page which will use create a ReportDocument object and then print/export as required.
As soon as I started down this path I received the 'invalid logon params problem' - so to simplify things and to get past this I've developed a simple 1 page report with which takes data from a dataset I've populated and passed to it.
Here's the problem:
1) If I put one table in the dataset and add a field from that table to the report it works OK.
2) If I use a second table and field (without the first) it works OK.
3) as soon as I have both tables and the report has field from each I get the 'Invalid logon parameters' error.
The tables are fine (since I can use each individually), the report is find (only has 1 or 2 fields and works with individual tables) ... it's only when I have both tables that I get problems...
... this is driving me up the wall and if CR can't handle this there's no way it's going to handle the more complex invoices with subreports.
Can anyone suggest what I'm doing wrong ... or tell me whether I'm just pushing CR beyond it's capabilities?
The code I'm using to generate the ReportDocument is:
List<Invoice> rinv = Invoice.SelectOneContract(inv.Invoice_ID);
List<InvoiceLine> rline = InvoiceLine.SelectInvoice(inv.Invoice_ID);
        DataSet ds = new DataSet();
        ds.Tables.Add(InvoiceLineTable(rline));
        ds.Tables.Add(InvoiceTable(rinv));
        rdoc.FileName = Server.MapPath("~/Invoicing/test.rpt");
        rdoc.SetDataSource(ds.Tables);
        rdoc.ExportToDisk(ExportFormatType.PortableDocFormat, "c:
test
test.pdf");
... so not rocket science and the error is always caused at the 'ExportToDisk' line.
Thanks in advance!

Answer 1

I've got nowhere trying to create a reportdocument and pass it a multi-table dataset, so decided to do it the 'dirty' way by adding all the controls to an aspx page and referring to them.
I know I can do this because the whole issue is printing a report that is currently viewed.
So ... I've now added the ObjectDataSources to the page as well as the CrystalReportSource and the CrystalViewer ...
.. I've tested the page and the report appears within the viewer with all the correct data ...
...so with a certain amount of excitement I've added the following line to the code behind file:
rptSrcContract.ReportDocument.PrintToPrinter(1, true, 1, 1);
... then I run the page and predictably the first thing that comes up is:
Unable to connect: incorrect log on parameters.
.. this is madness!
1) The data is retrieved and is in the correct format otherwise the report would not display.
2) the rptSrcContract.ReportDocument exists ... otherwise it would not display in the viewer.
So why does this want to logon to a database when the data is retrieved successfully and the security is running with a 'Network Services' account anyway????? (actually I know it has nothing to do with logging onto the database this is just the generic Crystal Reports 'I have a problem' message)
... sorry if this is a bit of an angry rant .. didn't get much sleep last night because of this ... all I want to be able to do is print a report from code .... surely this should be possible??