Nest a FamilyInstance inside another FamilyInstance

[Anonymous]

Hello

Is there a way to nest a FamilyInstance inside an existing FamilyInstance?

I am aware that this blog post describes something similar to what I am talking about but it actually only nests a FamilyInstance inside another when the project is a Family Project and not when its Construction, Architectural, MEP, etc. When you run the example code in an Architectural project, the 2 FamilyInstances are separate and not nested.

What I would like to do is take 2 existing FamilyInstance and insert 1 inside the other.

My code below attempts to nest a FamilyInstance inside another by adding it as a Sub-Component. The code compiles but it fails at runtime. I believe because SubComponents is deprecated.

FamilyInstance a = InsertFamilySymbolFromRfa("C:\\Line_Segment.rfa", doc);
FamilyInstance b = InsertFamilySymbolFromRfa("C:\\Point_Segment_3D.rfa", doc);
a.SubComponents.Insert(b);

[jeremytammik]

Dear Sam,

Yes (for a change).

A family instance, e.g. from a family A, can be inserted into a family document, e.g. B.

Thus, when you instert an instance of B into a project (or another family) document, you will be creating a nested instance, namely an instance of A within an instance of B.

Please learn the standard Revit product usage from a user point of view, then this will be obvious to you, I think.

Cheers,

Jeremy

[Anonymous]

Is it not clear I am asking what functions/methods/classes are used to nest a FamilyInstance inside another? Its clear from my thread that my question is 'how do you nest a FamilyInstance using the API' and not 'Is it possible to nest a FamilyInstance'.

Replying with a simple 'yes its possible' is redundant and is a display of the logic of child displays when asked a question and not an adult. Note this is a habit you have in almost all of your replies on this forum.

[jeremytammik]

Dear Sam,

I beg your pardon.

Thank you for venting your feelings.

You can use the NewFamilyInstance method.

It works in both family and project documents.

Best regards,

Jeremy