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I'm building a VSTO add-in for Powerpoint 2010 and the options the add-in sets apply to the currently open file instead of a per-user config. Can I save these options in the current file (I mean, add custom XML to the .PPTX file)? If so, how?

Thanks for your help.

Léster
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2 Answers2

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For very simple data, custom properties are ok (so long as you're aware that anyone who opens the file will be able to see, edit and delete them). And note that because PPT shares a common, too-small, allocation of data between links and document properties, adding too many of one can wipe out the other.

I'd use tags instead. Every shape, slide and presentation object can have a tags collection, containing one or more Name / Value pairs of strings.

These are invisible to the user and will not interfere with the hyperlinks in the presentation. 

' To add a tag
With ActivePresentation
  .Tags.Add "MyTagName", "MyTagValue"
End With

' To use a tag
If ActivePresentation.Tags("MyTagName") = "MyTagValue" Then
   ' Do something or other
End If
Steve Rindsberg
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If your Options are not too complex, I would go for Document Custom Properties. The following question illustrates how to use Custom Properties with Excel, they are supported in PowerPoint as well so this should provide a good starting point!

Community
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Mathias
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  • Took me some time to get it working (and a couple of try-catch instructions that I plan to eliminate later) but it's working now. Thank you. – Léster Jul 04 '12 at 23:38