Set parameter by name, using API

Revit
1

Hi,
how can I set a parameter by his name using the Revit API? I actually want to modify the value to one of the parameter of my FamilyType.

(I try to code exactly what the SetParameterByName note does)

Thanks!

2

Hi,

This was already exposed in the forum :

import clr

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

clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
from System.Collections.Generic import *
doc = DocumentManager.Instance.CurrentDBDocument


elements=IN[0]
parameter_names = IN[1]
values = IN[2]

for e, v in zip(elements, values):
	e.SetParameterByName(parameter_names,v)
#Assign your output to the OUT variable.
OUT = elements

Setparameter
Setparameter.png1068×682 35 KB

4 Likes
3

I’ve tried this one, but ‘elements’ for me are FamilyType and the error says that FamilySymbol (my family type) doesn’t have the argument SetParameterByName

4

*attribute

5

SetParameter works with elements :

Family%20type
Family type.png1564×614 37 KB

If you want to SetParameter inside a family, you can use the node from Orchid Package.
Family%20SetParameter

6

You need to post a snippet of your code so we can investigate where the issue is coming from.

We cannot do that with your description only.

7

Maybe this?

|Public method|ChangeTypeId(ElementId)|Changes the type of the element.

(Inherited from Element .)

If not it might help you identify an alternative solution…

http://www.revitapidocs.com/2018/f4f2420f-bba6-dac2-9b93-4e55a58d1375.htm

Hope that’s useful…

Mark