AR 14 PDF rendering error on .NET Core 3 running on Linux system

AR 14 PDF rendering error on .NET Core 3 running on Linux system

Posted by: maximilian.haag on 10 February 2020, 8:48 pm EST

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  maximilian.haag

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  Posted 10 February 2020, 8:48 pm EST

  Hello,
  
  I created a small .NET Core 3 project running the example lines for a PDF export from an RDLX report from the following link.
  
  https://www.grapecity.com/activereports/docs/v14/online/pdf-export.html

  I took some files from the sample projects “Invoice.rdlx” + “Invoice.csv”.
  
  On a W10 machine it is working fine and the .PDF is created, but on the Ubuntu 18 machine I am getting an “ArgumentNullException” at

  “reportDocument.Render(pdfRenderingExtension, outputProvider, pdfSetting);”

  at ```
  
  GrapeCity.ActiveReports.Document.PageDocument.GetRenderableReport(Boolean forceDataRefresh, Boolean forceParameterDataRefresh, CancellationToken token)
  
  at GrapeCity.ActiveReports.Document.PageDocument.Render(IRenderingExtension renderingExtension, StreamProvider streams, NameValueCollection settings, Boolean forceDataRefresh, Boolean forceParameterDataRefresh, CancellationToken token)
  
  at GrapeCity.ActiveReports.Document.PageDocument.Render(IRenderingExtension renderingExtension, StreamProvider streams, NameValueCollection settings, Boolean forceDataRefresh)
  
  at GrapeCity.ActiveReports.Document.PageDocument.Render(IRenderingExtension renderingExtension, StreamProvider streams, NameValueCollection settings)

  The debugger notices that the PageDocument is empty:
  
  System.ArgumentNullException: Value cannot be null. (Parameter ‘stream’)
  
  at System.IO.StreamReader…ctor(Stream stream, Encoding encoding, Boolean detectEncodingFromByteOrderMarks, Int32 bufferSize, Boolean leaveOpen)
  
  at System.IO.StreamReader…ctor(Stream stream, Encoding encoding)
  
  at GrapeCity.BI.Data.DataProviders.Csv.CsvDataReader.c(CsvConnectionString id)
  
  at GrapeCity.BI.Data.DataProviders.Csv.CsvDataReader.b()
  
  at GrapeCity.BI.Data.DataProviders.Csv.CsvDataReader.f()
  
  at GrapeCity.BI.Data.DataProviders.Csv.CsvDataReader.Read()
  
  at GrapeCity.ActiveReports.Rendering.DataProcessing.RecordsAdapter.GetEnumerator()+MoveNext()
  
  at GrapeCity.Enterprise.Data.DataEngine.Extensions.EnumerableExtensions.MemoizedReadOnlyList

  1.CacheItem()    at GrapeCity.Enterprise.Data.DataEngine.Extensions.EnumerableExtensions.MemoizedReadOnlyList

  1.GetEnumerator()+MoveNext()
  
  at System.Linq.Enumerable.TryGetFirst[TSource](IEnumerable

  1 source, Boolean& found)    at System.Linq.Enumerable.FirstOrDefault[TSource](IEnumerable

  1 source)
  
  at GrapeCity.ActiveReports.Rendering.ReportDataProcessor.GetRecordSet(IList

  1 finalizers, BuildCommandFn buildCommandFn, DataParameter[] parameters, IDataSet dataSet, IExpressionContext expressionContext, CancellationToken token, IDictionary

  2 recordSetsCache)
  
  at GrapeCity.ActiveReports.Rendering.ReportDataProcessor.<>c__DisplayClass2_0.b__0(RecordSetKey key)
  
  at GrapeCity.ActiveReports.Rendering.Tools.FuncExtensions.c

  2.<Memoize>b__0(a x)    at GrapeCity.ActiveReports.Rendering.ReportContextBuilder.<>c__DisplayClass0_0.<MakeReportContextFn>b__0(Report def, DataParameter[] parameters)    at GrapeCity.Enterprise.Data.DataEngine.DataProcessing.DataProcessor.Run(Report report, ReportContextFn makeContext, DataParameter[] dataParameters, InteractiveSortState sortState)    at GrapeCity.ActiveReports.Rendering.EngineDataProcessor.FetchData(Report query, Func

  2 getContext, ResourceLocator resourceLocator, Func

  3 makeExpressionContext, CancellationToken token, DataParameter[] parameters, Func

  2 locateDataSource, Func`2 resolveCredentials, InteractiveSortState sortState, IDataProvidersFactory dpf)
  
  at cw.FetchData(PageReport pageReport, IExpressionContext evaluationContext, ReportStore reportStore, a makeContext, CancellationToken token, InteractiveSortState sortState, Boolean handleEmptyGroups)
  
  at cw.FetchData(PageReport report, Boolean handleEmptyGroups)
  
  at GrapeCity.ActiveReports.Document.PageDocument.get_IsEmpty()

  
  
  It seems that there are some problems with the automatically data provided by the CSV file loaded to the RDLX.
  If I take a static/empty RDLX report file the PDF export works.
  Maybe somebody else had some similar problems?
  
  Many thanks in advance, 
  Best regards.

• 

  maximilian.haag

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  Posted 10 February 2020, 11:16 pm EST

  I think I found the error.
  
  The relative path of the report connection string to the CSV didn’t work.

  If it is canged to absolute:

  report.Report.DataSources[0].ConnectionProperties.ConnectString = "Path=/home/.../Invoice.csv;Locale=en-US;TextQualifier=\";ColumnsSeparator=,;RowsSeparator=\\r\\n;HasHeaders=True";
  

  it works.

  Best regards.