I have a door family with a number of nested generic models for the panels. There is a “Family Type” parameter in the door family that allows you to switch between the different nested generic models. [image] I am trying to change this parameter with grasshopper, but when I try and input a value, …

You are inputting a Type, a single instance of the family will suffice. [image]

Hey…your input should be a family type and not text… also keep in mind the category should be matching as well… [image]

Ok. This makes sense, but the problem is that the nested panel family doesn’t exist in the project that the door family is loaded into, so I can’t query it. Is there a workaround?

Hi Liam, In this example there is a scripted component that can provide the Nested Family Types. [image] Rhino Inside Revit Hanger Example Revit [Unistrut Example File Overview] This example requires Revit 2022.1 and Rhino.Inside.Revit 1.2.7955.31573 (or above)…

Hi @Japhy , I’m a little confused on what the P input of that component is asking for.

That is the Family Type Parameter Name, which will provide the Family Types for the element (which don’t show in the project browser) [image]

I’m getting a null value… [image]

"Specified Cast is Not Valid" when assigning family type parameters

Rhino.Inside Revit

Japhy (Japhy) December 10, 2024, 7:09pm 4

Hi Liam,

In this example there is a scripted component that can provide the Nested Family Types.

Topic		Replies	Views
Change/Access nested family type Revit windows , rhinoinsiderevit , revit-2024	6	739	May 31, 2024
Creating familly with different types elements Revit windows	6	1353	November 15, 2022
Cannot set parameter value but can when divided to 1? Revit windows	9	770	November 30, 2022
Divide family into types Revit windows	14	2355	February 7, 2023
Unable to see the Family Component Type in Revit Revit windows	4	401	June 9, 2023

"Specified Cast is Not Valid" when assigning family type parameters

Related topics