Application is hanging after exporting a report

Question

Post Author: AnthonyM
CA Forum: .NET
I am using Crystal Reports XI R2 with C# in VS 2005. I am also using Crystal Reports SDK 11.5. I have a main report that contains 4 subreports that I want to pass data to at run-time. When I run my app to do this and save it as a pdf, it hangs and I eventually have to manually terminate the EXE. Now here is where it gets interesting: When I forcibly terminated the program and checked the file that it was supposed to write to, I notice that the report was transformed and written correctly. The issue was that the app was not closing upon completion.
I then stepped through the code using the debugger and saw that after I exit main's body; I get a message box saying "unknown software exception (0xe06d7363) occurred in the application at location 0x7c812a5b". Now, I went back and commented out the foreach loop in SetData() to iterate through the subreports to see what would happen. The result was that there was no message box about the software exception, but the report now had 4 empty subreports and made the main report practically useless. This means that something in the process of assigning data to the subreports is causing this "unknown software exception" to occur. The code I am using is:
public static void Main()
ReportDocument doc = new ReportDocument();
DataSet ds = new DataSet("ProbeSheetPrimeLeadStats");
try
//use the schema to create structure of the dataset
ds.ReadXmlSchema(new FileStream("C:
xmlFiles
ProbeSheetSchema.xsd", FileMode.Open, FileAccess.Read));
//now use the dummyLead.xml file to pass it data
ds.ReadXml(new FileStream("C:
xmlFiles
dummyLead.xml", FileMode.Open, FileAccess.Read));
//load the report in
doc.Load("C:
reports
ProbeSheetV2WSchema.rpt");
// set all the data for the main report
ApplyReportData(ds, doc);
//doc.ExportToDisk(ExportFormatType.PortableDocFormat, "C:
xmlFiles
ProbeTestOutput.pdf");
MemoryStream stream = (MemoryStream)doc.ExportToStream(ExportFormatType.PortableDocFormat);
FileStream outputOfResult = new FileStream("C:
xmlFiles
ProbeTestOutput.pdf", FileMode.Create, FileAccess.Write);
outputOfResult.Write(stream.ToArray(), 0,(int) stream.Length);
finally
//clean up the garbage :-p
doc.Dispose();
ds.Dispose();
private static void ApplyReportData
(DataSet DsReportData, ReportDocument theReport)
//set the main report's data
SetData(DsReportData, theReport);
//now set it for each subreport
/*NOTE: If you skip the below foreach loop, the app works fine!!! */
foreach (ReportDocument SubReport in
theReport.Subreports)
SetData(DsReportData, SubReport);
private static void SetData
(DataSet DsReportData, ReportDocument someReport)
//each table in the report find's corresponding sibling
//in the dataset's table collection
foreach (Table table in someReport.Database.Tables)
table.SetDataSource
(DsReportData.Tables[table.Name]);
I have a feeling that it could be a bug in Crystal Reports SDK 11.5, but I can't confirm that. Does any one have any Ideas or suggestions? I need to dynamically set the datasource for this report and its subreports and can't remove the subreports because each of them represents an attribute of the main entity that can be multi-valued and I do not think can be displayed in one page otherwise.
Thank you in advance for any help. Let me know if there is anything that needs clarification.
-Anthony

Answer 1

Post Author: AnthonyM
CA Forum: .NET
I found out what the problem was. It was not Crystal Reports API, it was me (ID10t error :-p). When I wrote the report and used the XML Schema for the data layout in the report, I had all the tables originally inputted into the main report and then again in each subreport. What I think was happening was some sort of a data conflict when I was exporting with the subreport data filled out and having it present in the main report as well. I'm not precisely sure what was going on, but removing the extra tables from the main report did solve the problem.
I hope this saves someone some time; it took be 3 days to figure it out.