Which .Net library for Revit Add-In?

[yafimski]

Hi,

I usually implement Revit API related add-ins via the C# .Net Framework Class Library.

Is it also possible to use .Net Core or .Net Standard or any other type of project, to achieve the same?

Thanks.

[jeremy_tammik]

Since the Revit add-in is running inside a session of Revit.exe, you will have to let it use whatever .NET components have already been loaded by Revit.exe. 

[perry.swoboda · Accepted solution]

Addin for Revit 2020 uses .NET 4.72.  Addins for Revit 2021, 2022 and 2023 use .NET 4.8.
.NET Core is more for web development, and Revit is desktop development.  Pretty sure you are stuck with using only the frameworks for now.