I have a Curtain Wall (The one in the Revit sample).
I want to change this parameter 
But alas when I put ‘Layout’ into my code I only get the Horizontal Grid. I want the Vertical Grid.
Is it possible to do this without Python?
Hi,
You must use the built in parameter : "SPACING_LAYOUT_VERT".
archilab has some nodes to set them.
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Nope, “Layout” does the horizontal grid, not the vertical one.
Ahhh! I couldn’t find that anywhere! Thanks
Rather SPACING_LAYOUT_VERT
You can also use the Revit Lookup addin to find the built in parameter names.
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Still can’t get the vertical grids.
I have tried:
SPACING_LAYOUT_V
SPACING_LAYOUT_VERT
SPACING_LENGTH_V
I’ve tried all that look like they should work but
there is
V and VERT… and H and HORIZ… none of them work!
@Alien ,
you call them by the buildname thats can only used in Python…
import sys
import clr
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
# Die Eingaben für diesen Block werden in Form einer Liste in den IN-Variablen gespeichert.
#.get_Parameter(BuiltInParameter.SPACING_LENGTH_VERT)
walls = UnwrapElement(IN[0])
setPara = []
for i in walls:
setPara.append(i.get_Parameter(BuiltInParameter.SPACING_LAYOUT_VERT))
OUT = setPara
KR
Andreas
See my original post - without Python 
It is a type parameter. You missed the ElementType node.
Oh dear! 
I am really tired today!
(I literally am facepalming)
Thank you!