How to filter and set "Key Parameter"?

Developers
1

Hello,

how do i set a key parameter… i get them via .AsValueString()

import clr
import sys 

clr.AddReference('RevitAPI')
from Autodesk.Revit.DB import *
from Autodesk.Revit.DB.Structure import *

clr.AddReference('RevitAPIUI')
from Autodesk.Revit.UI import *

clr.AddReference('System')
from System.Collections.Generic import List

clr.AddReference('RevitNodes')
import Revit
clr.ImportExtensions(Revit.GeometryConversion)
clr.ImportExtensions(Revit.Elements)

clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager

doc = DocumentManager.Instance.CurrentDBDocument
uidoc=DocumentManager.Instance.CurrentUIApplication.ActiveUIDocument

ODE_GESCHOSSDECKEN = "ODE_Geschossdecken"


#functions
def tolist(x):
    if hasattr(x,'__iter__'): return x
    else: return [x]

#collector
collector = FilteredElementCollector(doc).OfCategory(BuiltInCategory.OST_Floors)
slabs = tolist(collector.WhereElementIsNotElementType().ToElements())

_fire = [i.LookupParameter(ODE_GESCHOSSDECKEN).AsValueString() for i in slabs]


OUT = slabs, _fire

grafik
grafik915×362 39.3 KB

grafik
grafik

tragely my list remains empty

KR

Andreas

2

Dropdown selections typically use ElementIds or numeric indicators. You could always try returning the value using each of the return methods or you could return just the parameter and use a node to get the value and check its object type.

1 Like
3

@Nick_Boyts ,

the LookUp showed me that values are not a “format” Value is stored as Element…

I will check… how to set the “Parameter”

KR

Andreas

4

AsElement means ElementId. So your best bet in that case is to get the elements (keys) from the key schedule and use that as a kind of lookup. That would depend on how you’re specifying the value to use, but could be name matching, a dictionary, or something similar. Setting a value as an ElementId is the same as any other type. With nodes, that’s the Element object itself. With Python and the API, that’s the ElementId.

1 Like