Filter walls not in groups

[Marcus_Isacsson]

Hi fellas!

Does anyone know a way to filter all walls except the ones that are in groups? (otherwise I get an error saying I have to ungroup before making changes to parameters for those walls)

[Steven]

Use Element.Group (clock works I think) and Object.IsNull. Element.Group will return the group the wall is in and null for walls not in a group. Object.IsNull will give you true or false that can be feed into a filter.

you can also see this post if you want to keep the groups as well.

Get the Parent Group

You could modify the code in Element.Group to be a recursive function like so: import clr clr.AddReference('RevitAPI') from Autodesk.Revit.DB import * clr.AddReference("RevitNodes") import Revit clr.ImportExtensions(Revit.Elements) elements = UnwrapElement(IN[0]) elementlist = list() def parentGroup(item): if item.Document.GetElement(item.GroupId) == None: elementlist.append(item) else: parentGroup(item.Document.GetElement(item.GroupId)) for elem in elements: parentGroup(elem) OUT =…

[Steven]

If what I posted solved your problem to the title please mark it as solved. The forum asks that all deviation from the original topic be posted to a new thread. Can you please start a new post? It helps other who come here looking for help. I will gladly answer your question there.

Steven