C1FlexReport RenderToStream

C1FlexReport RenderToStream

Posted by: abeavis on 27 September 2017, 9:11 pm EST

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  abeavis

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  Posted 27 September 2017, 9:11 pm EST

  Hi,

  I’m trying to migrate an application from using C1Report to C1FlexReport. One feature of C1Report frequently used by the application is the rendering of the report output as a Pdf to a memory stream (subsequently consumed through a service call to a mail server).

  The C1FlexReport samples I’ve viewed to achieve a similar result render the file to disk with an export filter (RenderToFilter()). The application generates hundreds of reports in payment/statement runs and this would be inefficient resulting in high disk IO.

  Redacted function code
  
  [vb]Friend Function CreatePdfAttachment(attachmentName As String, report As C1Report) As MemoryStreamAttachment

  Dim reportStream As MemoryStream = New MemoryStream()
  
  report.RenderToStream(reportStream, FileFormatEnum.PDFEmbedFonts)

  Return New MemoryStreamAttachment(reportStream, MediaTypeNames.Application.Pdf, attachmentName)

  End Function[/vb]

  Is it possible to achieve the same outcome with C1FlexReport without writing the output to disk?

  Regards.

• 

  sonu-pachaharagmail-com

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  Posted 27 September 2017, 9:11 pm EST

  Hi,
  
  for achieving the same, you need to specify the Stream property in PdfFilter without any file name as:
  
  [vb]
  
  'Render the C1FlexReport as stream
  
  Dim ms As New MemoryStream()
  
  Dim pdf As New PdfFilter()
  
  pdf.Stream = ms
  
  c1FlexReport1.RenderToFilter(pdf)
  
  ms.Position = 0

  ’ if you want to save in disk
  
  Dim fs As New FileStream(“flex.pdf”, FileMode.Create)
  
  ms.WriteTo(fs)
  
  fs.Close()
  
  [/vb]

  Hope, it will work for you.

  Thanks,
  
  Sonu

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  grapecity

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  Posted 27 September 2017, 9:11 pm EST

  Hi Sonu,

  I have refactored the code as you suggested and can confirm that this solution works.

  Thanks for your assistance.

  Kind Regards,

  Andrew

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  andreas.kren

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  Posted 20 February 2019, 5:07 pm EST

  Unfortunately this doesnt work for a htmlfilter?

  What do I have to do that this example works with a htmlfilter?

  Thank you.

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  kavanakgowda123

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  Posted 20 February 2025, 5:34 am EST

  am trying to convert C1Componenet to c1flexcompoennet reportCtl.RenderToStream(pdfStream, C1.C1Report.FileFormatEnum.PDFEmbedFonts);
  
  pdfStreams.Add(new MemoryStream(pdfStream.ToArray()));
  
  this code i need to convert for Flexcompoenent

  please help me.

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  aastha.gupta

  

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  Posted 21 February 2025, 6:46 am EST

  Hi,

  The following documentation link shows you how to render your c1flexreport via different export Filters: https://developer.mescius.com/componentone/docs/reporting/online-flexreport/winexportreport.html

  @Andreas, you can find the following section helpful to you: https://developer.mescius.com/componentone/docs/reporting/online-flexreport/winexportreport.html#i-heading-render-flexreport-using-htmlfilter-class

  @kavana, you can use EmbedFonts property of the PdfFilter class as referred in the link: https://developer.mescius.com/componentone/docs/reporting/online-flexreport/winexportreport.html#:~:text=Description-,EmbedFonts,-Used%20to%20embed

  Hope this helps you!

  Thanks & regards,
  
  Aastha