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Exporting to PowerPoint Doesn't Always Work

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Phil
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Phil asked on 04 May 2017, 06:25 PM

In our UI, the user has the ability to export their reports to multiple formats including PowerPoint.

We have noticed that the PowerPoint exports don't always work.  Sometimes, the reports will go to PowerPoint with not issue and sometimes they it seems the export will just stop and the download is never received.

One thing that I have noticed is the reports that return larger amounts of data seem to not work as reliably.  They will render in the report viewer, but the PowerPoint export never shows up.

Any help is appreciated.

Thanks,

Phillip

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Katia
Telerik team
answered on 09 May 2017, 12:48 PM
Hello Phillip,

In general, reports are exported to pptx format according to the rules described in Design Considerations for PowerPoint Rendering help article. Limitations of the export due to the size of the report are not known.

If the report needs to display a large amount of data it might affect its performance and result in OutOfMemory exception in case there is not enough resources on the machine the report is rendered. In general, report processing and rendering are memory intensive operations. During the report generation, besides the retrieved data there are newly generated resources by the report which are held in memory and each item takes time and memory to be rendered in the report.
In this case, you might consider narrowing the amount of data that needs to be retrieved by using data source parameters - filtering data on data retrieval.

When data source parameters are mapped to report parameters the end user can control what amount of data needs to be displayed in the report - Using Parameters with the SqlDataSource component(Binding SQL Query Parameters to Report Parameters).

Let us know if there are any errors in Output window when you run the application in debug mode in Visual Studio.


Regards,
Katia
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