topic Re: Picking New Element Host via API in Revit API Forum

Picking New Element Host via API

Anonymous — Fri, 08 Mar 2019 19:34:30 GMT

Hello All,

Does anyone know how to change an Element's host/work plane through the Revit api. I can't find anything in the Revit API that doesn't require deleting and replacing the element. FamilyInstance contains the properties Host, Host Face, and HostParameter... but they're all getters.

Thank You!

Re: Picking New Element Host via API

jeremytammik — Sun, 10 Mar 2019 12:58:47 GMT

Dear James,

Thank you for your query.

Afaik you are perfectly right, and the host element or level or plane can only be set at creation time.

Please file a wish list item in the Revit Idea Station for a possibility to set it.

There is probably one there already that you can vote for and comment on.

Thank you!

Best regards,

Jeremy

Re: Picking New Element Host via API

Anonymous — Thu, 14 Mar 2019 11:13:24 GMT

Wow! It's not even accessible through PostableCommand, yet it applies to half of our fixture and tag families.

Anyways, Thank you Jeremy! It feels like you're the only one supporting questions from the API community... I appreciate it though!

Re: Picking New Element Host via API

Anonymous — Thu, 14 Mar 2019 12:00:17 GMT

Link for others to support API Idea suggestion:

https://forums.autodesk.com/t5/revit-ideas/picking-new-element-host-via-api/idi-p/8658294

Re: Picking New Element Host via API

jeremytammik — Thu, 14 Mar 2019 17:30:26 GMT

Dear James,

Thank you very much for your appreciation and wish list entry.

Best regards,

Jeremy

Re: Picking New Element Host via API

Anonymous — Thu, 14 Mar 2019 17:33:04 GMT

Ah! Okay, thank you!

Re: Picking New Element Host via API

jeremytammik — Thu, 14 Mar 2019 17:30:57 GMT

Oops, sorry, it doesn't, I was mixed up.

Re: Picking New Element Host via API

Anonymous — Thu, 14 Mar 2019 17:32:25 GMT

No problem!

Re: Picking New Element Host via API

joshua.lumley — Tue, 06 Aug 2019 23:22:57 GMT

Form class has a Rehost method, is it possible to use this?

Re: Picking New Element Host via API

jeremytammik — Wed, 07 Aug 2019 02:53:18 GMT

Please try it out and let us know!

It sounds like it should do the right thing.

However, I am afraid it might not work in all cases. Look at Diane's note from the AU Revit API panel:

https://thebuildingcoder.typepad.com/blog/2018/11/dashboard-regen-and-revit-api-panel-at-au.html#2.2

Rehost a family instance
- Definitely doesn't work on face based but would like it to work in all cases
- Also needs to work on links

Cheers,

Jeremy