Edit Light Fixture Asset programmatically

[rossen.hristov]

Hello,

I have obtained an instance of Autodesk.Revit.DB.Visual.Asset from a Autodesk.Revit.DB.LightNode.  I know that materials for example can be edited with Revit's API by using AppearanceAssetEditorScope, creating a transaction, etc. 

My question is, can the same thing be done for lights? Can we edit lights programmatically? I need to change the "intensityValue" and "filterColor" parameters of a light. When I try to set the property value, I get the InvalidOperationException "The asset property is not editable. Asset can be edited only in an edit scope."

How to I get a AppearanceAssetEditorScope for a light? Maybe it is not possible for lights?

In other words, is there a similar example to this one, but for lights: https://www.revitapidocs.com/2019/743c74ba-12de-4d77-a677-325229525955.htm

[jeremytammik]

All you need in order to instantiate the AppearanceAssetEditScope is the document, isn't it?

I don't see where the problem is.

Ah, looking further, I see the generic EditScope base class, and some derived classes:

https://www.revitapidocs.com/2019/bac11282-3a3b-953e-8bc4-960c62da4946.htm

Do you mean the error message is saying that an edit scope is required for lights, and there is no such thing available?

Can you please submit a minimal reproducible case so we can see what your steps are and what might be wrong?

https://thebuildingcoder.typepad.com/blog/about-the-author.html#1b

Then I can share that with the development team for further analysis if required.

Thank you!

[rossen.hristov]

Do you mean the error message is saying that an edit scope is required for lights, and there is no such thing available?

That is exactly what I mean. Materials have the AppearanceAssetId property and you can create an AppearanceAssetEditScope class and call its Start and Commit methods. 

There is no such thing for lights. Or is there? I read your blog post here: https://thebuildingcoder.typepad.com/blog/2017/11/modifying-material-visual-appearance.html

Can we do the same for lights?

My question is very simple, can you edit lights programmatically like you can edit materials. It is a yes/no question.

[jeremytammik]

Okey-doke. I asked the devteam for you. I did not tell them that you only want a yes or no answer. You might end up being frustrated if they did.

[rossen.hristov]

Thank you!