HideCategoriesTemporary() ICollection[ElementId] error

Revit API
1

I’m making a quick helper tool which will just temproraly hide a predefined list of categories in an active view.
I’ve tried this a few ways but get stuck with a similar error, HideCategoriesTemporary() is giving me similar errors

passing a list of elements:
expected ICollection[ElementId], got list

doc.ActiveView.HideCategoriesTemporary(
[DB.ElementId(DB.BuiltInCategory.OST_Walls,  
DB.ElementId(DB.BuiltInCategory.OST_Walls,
] )

any insights into how to get passed this?

2

hi
see IList<Type> problem

also, you are passing twice the wall category in your example ;p

doc.ActiveView.HideCategoriesTemporary(
[DB.ElementId(DB.BuiltInCategory.OST_Walls,
DB.ElementId(DB.BuiltInCategory.OST_Walls,
] )

3

Ah brilliant thanks! That should have it sorted

The walls cat was just a typo when I was cutting down my longer list of cats!

1 Like
4

Heres is a solution to it,
the two spots that i got stuck on were

  • Thinking that Type in List[Type] would need to be the CLR type of the elements in the list
  • Thnking that I’d need to have a ListType instead of just passing the categories into it right away
from System.Collections.Generic import List

doc = __revit__.ActiveUIDocument.Document

doc.ActiveView.TemporaryViewModes.DeactivateAllModes()

cats = [
        DB.ElementId(DB.BuiltInCategory.OST_Walls),
        DB.ElementId(DB.BuiltInCategory.OST_Doors),
        # list of other categories... 
        ]

cat_collection = List[DB.ElementId](cats)

doc.ActiveView.HideCategoriesTemporary(cat_collection)
2 Likes
5

@eimhin Something similar I did to hide/unhide all georef points in active view

from pyrevit import HOST_APP, DB, revit

from System.Collections.Generic import List

active_view = HOST_APP.active_view

catsId = [

        DB.ElementId(DB.BuiltInCategory.OST_IOS_GeoSite),

        DB.ElementId(DB.BuiltInCategory.OST_SharedBasePoint),

        DB.ElementId(DB.BuiltInCategory.OST_ProjectBasePoint)

        ]

cat_collection = List[DB.ElementId](catsId)

# get if category is hidden in active view

cats_visibility_status = []

for cat in cat_collection:

    cats_visibility_status.append(active_view.GetCategoryHidden(cat))

with revit.Transaction('turn on Georeferenced Points'):

    for cat in cat_collection:

        if all(cats_visibility_status):

            active_view.SetCategoryHidden(cat, False)

        else:

            active_view.SetCategoryHidden(cat, True)
1 Like