Revit API in VSTO Project

[sasuarezr]

Hi everyone,

I would like to know if it is possible to use the Revit API inside an Excel VSTO project, and if so then how should I set up the project in Visual Studio. What I want is to be able to interact with a Revit file from an Excel Add-In through a custom Excel ribbon tab made in a VS Excel VSTO Add-In project.

Thanks in advance,

Sincerely, Santiago

[jeremy_tammik]

No, not directly:

The Revit API requires a valid Revit API context. Such a context is only provided within the event handler of a Revit API event. Such an event requires a running Revit add-in and a running Revit session. 

Yes, indirectly:

You can presumably achieve what you need anyway, by implementing a Revit add-in that defines an external event:

https://www.revitapidocs.com/2024/05089477-4612-35b2-81a2-89c4f44370ea.htm

You can raise the external event from your Excel add-in and access the Revit API in the event handler.