Delete Family parameters of a Family in an opened project

[filip.kabelis]

Close but this still involves having a real path to a real directory on your PC, I would like to do it all inside of a Revit instance and only with a project - contaning families to be purged - opened.

edit: could be some more info here, thanks SeanP

Ungrouping & Purging All Families in a Model

Yes, you have to use that as an argument in one of the overloads of the LoadFamily Method. It requires that you create a custom class and maybe utilize StrongBox type to handle the out attributes in that class’ methods. That shouldn’t be any problem, but I had some doubt about the transactions, but it can probably be handled with ForceCloseTransaction() in the Transaction manager. Here is a C# example: