Looking to set Parameter value with Python. Am I using the correct command?

Revit
, ,
4

Hi @dfgind

Here’s something to work with:

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image1529×829 78.1 KB

Python:

import clr

#Import the Revit API
clr.AddReference('RevitAPI')
import Autodesk
from Autodesk.Revit.DB import *

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

#Reference the active Document and application
doc = DocumentManager.Instance.CurrentDBDocument

elem = UnwrapElement(IN[0])

elem_param = elem.get_Parameter(BuiltInParameter.ALL_MODEL_INSTANCE_COMMENTS)

TransactionManager.Instance.EnsureInTransaction(doc)
if elem_param.Set('Hello World'):
	OUT = 'Success'
else:
	OUT = 'Failed to Set Parameter'
TransactionManager.Instance.TransactionTaskDone()

Link to the Set() method from the API.

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