Hello! I am trying to place a family instances above all doors in the project. The problems is that familes created via API does not have ‘Levels’ parameter - iam forced to set New host manualy. And i cant change builtinparameter FAMILY_LEVEL_PARAM because it is read-only(but it should be writeable…

Hi Dmytro, maybe, that value depends on other object, related to the family. Do you have some property that return other table to explore it?

Hi, franciscopossetto! I can use any other families even with simple extrude body and result is the same. [image]

Have you trying with other newFamilyInstance definition? the one that not specificate the level? Just to be sure that’s not a problem with the method. Maybe you can set the level on that way. Just an idea.

Same result with any other methode… Parameter is read-only https://www.revitapidocs.com/2016/451ee414-cea0-e9bd-227b-c73bc93507dd.htm

Thx for trying to help, the error is: IronPythonEvaluator.EvaluateIronPythonScript операция не выполнена. Traceback (most recent call last): File “”, line 32, in Exception: The parameter is read-only.

Is weird, should works.Could you share the family? I can try here and see in RevitLookup.

Ofcourse, it is simple generic model family ARG_2D_ПеремичкаГазобетон.rfa (348 KB)

I tried with R2019 and the result is different: [image] I wonder if Schedule LEvel and Work Plane represents your two parameter “Host” and “Level”?

For those that land here: I had a slightly different problem at first. The familyinstance I created programatically didn’t have a level parameter at all. [image] Where, in theory, it should have looked like this [image] Turns out I was using the wrong Create.NewFamilyInstance method. I was usin…

Creating FamilyInstance. Problem with setting level parameter

Developers

franciscopossetto October 14, 2019, 12:41am 10

I tried with R2019 and the result is different:

I wonder if Schedule LEvel and Work Plane represents your two parameter “Host” and “Level”?

Topic		Replies	Views
Family: add level information Revit revit	3	2093	December 11, 2016
Change Level and host revit , python , dynamo	10	6434	May 25, 2021
Create instance by Cad Block and element change level Revit revit , dynamo	2	201	December 5, 2022
Adding a level to a Family type? Geometry	12	1279	December 21, 2016
Add level to elements Revit dynamo	2	259	October 9, 2023

Creating FamilyInstance. Problem with setting level parameter

Related topics