Excel VSTO: Use ResourceDictionary which is in separate assembly RRS feed

  • Question

  • In my VSTO Application, I need to use the ResourceDictionary which is in separate assembly.

    I created a separate ResourceDictionary named generic.xaml in the VSTO application under themes folder like /themes/generic.xaml. In that file, I have referenced the ResourceDictionary from the external assembly using the Pack URIs.

    <ResourceDictionary xmlns="">
         <ResourceDictionary Source="pack://application:,,,/ExternalAssemblyName;component/Themes/resource.xaml"  />

    Also changed AssemblyInfo to the following:

    [assembly: ThemeInfo(

    But still found no luck. Any help would be good.

    Wednesday, May 16, 2018 8:43 AM

All replies

  • Hello Jayakrishnan,

    This forum is for development issue related to Visual Studio Tools for Office and I think your issue is more related to ResourceDictionary which is not a part of Visual Studio Tools for Office. 

    I would suggest you try to reproduce the issue on other type application, such as a windows form application or a console application. If it could work on other applications, the issue may be more related to VSTO. If it could not too, I think this issue is not related to VSTO.

    Please try to do such test and share us the result.

    Best Regards,


    MSDN Community Support
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    Thursday, May 17, 2018 9:25 AM