Model text as a generic family

Hi there,

I make a script that turns the names of all the family instances into text.
I filter all the generic models, but it apparently one family within this category gives an error.

It turns out to be the model text which triggers an error.

-Are there ways to change the categorie of this system family?
-Are there alternative ways to exclude them from selection?

I guess the problem is that “model text” doesn’t has an instance?

Kind regards,


May be model in place?

OMG, Jan Willem, would it be that easy?

Hmmm…Model text is not an option for a Model in place…

May be a reach-around would be to create a dedicated Family, with an extruded text in it.

Kind regards,


Something like this?

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Lol, read your post wrong.

Use the “isNull” and filter with List.FilterByBoolMask ;-).

Hi Christian,
geveldragers naam geven 03.dyn (15.8 KB)
I am glad you see it, but I have no clue how to introduce it.

“Object.Is Null” sounds promising though.

I uploaded the script, feel free introduce it.

Kind regards,


Hi Christian,

the error is upstream from your Filter.

Let’s move the filter.

Hmm…“the conversion is not valid”…

Any thoughts on how to filter them properly?

Kind regards,


Yes, it is before the filter because it gets generated in that node “Familyinstance.GetFamily” :-).

Then you filter by Element Type first.
Like this:

Let’s have a look…

No errors, but I am filtering familynames now, not the names of instances.
Let me rewire your solution, according to the original.

All right! Thanks a lot, Christian.

Now I have to make sure the names of the instances can be assigned to family-text-parameters of nested family, but that’s another toppic…

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