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I'm trying to create a Keynote Tag via the Revit 2012 API. However, I found now reference to creating a Keynote Tag anywhere on the internet or in the samples. I see that the BuiltInCategory.OST_KeynoteTags is part of the IndependentTag class and according to http://thebuildingcoder.typepad.com/files/guide-to-placing-family-instances-with-the-api.doc you need to use the TM_ADDBY_CATEGORY TagMode to create a Keynote. However, when you then try to change the new Tag via ChangeTypeId, you get an error.

Has anyone figured this out?

Anthony Tiefenbach
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  • possible duplicate of [Revit API: How to create Element Keynote for a wall and Material Keynote?](http://stackoverflow.com/questions/16589221/revit-api-how-to-create-element-keynote-for-a-wall-and-material-keynote) – skeletank May 27 '14 at 14:07

1 Answers1

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I haven't had a chance to try yet, but I'm thinking you're out of luck. For the most part, you can't do things with the API that you can't do interactively in Revit. I did quickly test that you can't change the type of a multi-category tag to be a keynote tag. While they're both IndependentTag elements, they are different Categories, and it's very rare in my experience where you can switch the category of a placed element.

skeletank
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Matt
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  • Thanks Matt. I assumed that it wasn't possible, but never saw any documentation that it wasn't, or was, possible. For my purpose I was able to just renumber existing keynotes in a view. Perhaps you could just copy an existing keynote? Maybe I'll look into that someday. – Anthony Tiefenbach Jul 10 '12 at 12:21