Hello, i can get the name of a category. But how can i get the API Name like OST_Rooms, OST_Slabs, OST_StructuralColumn, … a.s.o. ? [image] import clr clr.AddReference('RevitAPI') from Autodesk.Revit.DB import * from Autodesk.Revit.DB.Structure import * clr.AddReference('RevitAPIUI') from Auto…

This should cover almost anything with a category import clr import System clr.AddReference("RevitAPI") from Autodesk.Revit.DB import BuiltInCategory, Category inputs = UnwrapElement(IN) ids = [ i.Id if isinstance(i.Id, int) # Dynamo Category else i.Id.IntegerValue if isinstance…

I highly recommend installing the Revit Lookup tool to help with things like this. It’s way easier to just look for the stuff you’re after than go searching on the internet. [image]

How I would do it now import clr import System clr.AddReference("RevitAPI") from Autodesk.Revit.DB import BuiltInCategory OUT = System.Enum.GetName(BuiltInCategory, IN[0].Id) EDIT IN[0] is a Dynamo Category object

@Nick_Boyts , i got a empty list when i use BuiltInParameter [grafik] KR Andreas

[image] Mike.Buttery: import clr import System clr.AddReference("RevitAPI") from Autodesk.Revit.DB import BuiltInCategory OUT = System.Enum.GetName(BuiltInCategory, IN[0].Id) i understand i need category itself … [grafik] i have to combine it with python-dicctionary i can run it in this…

The property is only available in 2023+. I believe it still requires you to check for the matching Id, but it’s a bit of a shortcut. [image] Draxl_Andreas: i understand i need category itself … You could just do this in your code rather than getting the category separately.

How to get the Category Name - API Name?

Developers

Mike.Buttery November 16, 2023, 10:21pm 3

See my post here How get OST (Built-In Name) of element - #23 by Mike.Buttery

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How to get the Category Name - API Name?

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