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Add Subreport with Stream

I'm trying to add a Subreport dynamically via a Stream.

I've tryed to call the method LoadSubreport directly after the LoadReport Method.
But it's not working. Every time I get this error message: "An error occurred while rendering 'SubReport' report item."

If I render the SubReport as a normal report it works.

In the path-field of the subreport control I've set the same text i pass through the LoadSubReport method

What am I doing wrong?
Can you please provide me with an example project?


5 Replies

MM Mageshyadav M Syncfusion Team February 25, 2019 10:21 AM UTC

Hi Stefan, 
We have validated the mention query with your shared details at our end. Please find the following code snippet to load subreport from stream, 
private void MainWindow_Loaded(object sender, RoutedEventArgs e) 
    viewer.ProcessingMode = ProcessingMode.Local; 
    Assembly assembly = typeof(MainWindow).GetTypeInfo().Assembly; 
    Stream reportStream = assembly.GetManifestResourceStream("ReportViewer.Reports.MainReport.rdlc"); 
    Stream subReportStream = assembly.GetManifestResourceStream("ReportViewer.Reports.SubReport.rdlc"); 
    viewer.SubreportProcessing += Viewer_SubreportProcessing; 
    viewer.LoadSubreport("SubReport", subReportStream); 
    viewer.DataSources.Add(new Syncfusion.Windows.Reports.ReportDataSource("TopSalesPerson", SalesPersons.GetTopSalesPerson()));    
private void Viewer_SubreportProcessing(object sender, Syncfusion.Windows.Reports.SubreportProcessingEventArgs e) 
    e.DataSources.Add(new Syncfusion.Windows.Reports.ReportDataSource("StoreSales", StoreSales.GetData())); 
We have created standalone sample to load subreport from the stream and it can be downloaded from the following location,    

IM Imperator February 25, 2019 06:04 PM UTC


Thanks a lot.

MM Mageshyadav M Syncfusion Team February 26, 2019 12:29 PM UTC

Hi Stefan, 
Thanks for your update. 
We hope provided solution would have helped on your side. 

IM Imperator February 26, 2019 05:47 PM UTC

Hi again,
yeah thank you very much.

It helped a lot.

PR Padmini Ramamurthy Syncfusion Team February 27, 2019 05:56 AM UTC

Hi Stefan, 
You are welcome and please get back to us at anytime if you need any other assistance. 

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