How to Get All Changed Elements, Including Unsaved Changes, Using Document.GetChangedElements()?

[felixK4ZSQ]

Hi everyone,

I'm currently using Document.GetChangedElements(baseVersionId) to retrieve all elements that have changed since an earlier version of the document. This works well for identifying changes where Revit has created a new version ID.

However, I've noticed that when changes are made without Revit generating a new version ID, those modifications are not included in the results of GetChangedElements().

Is there a way to retrieve all element_ids that have changed since the last version, including those unsaved changes? Or is there a way to use GetChangedElements() so that it captures all changes, even if they don’t correspond to a new version ID?

I came across this question  where @jeremy_tammik provided insight on obtaining document changes compared to an earlier version. I was wondering if there’s a similar or complementary approach to handle this scenario without saved changes.

Thanks for your help!

Helpful links:

API: Document.GetChangedElements(): https://www.revitapidocs.com/2024/0799eb9e-5ce8-2668-eb3d-aecfd121b2d6.htm

[jeremy_tammik]

Interesting question. I have not used the GetChangedElements method myself. My main experimentation in this direction is captured in the TrackChanges project:

• Tracking Element Modification
• Implementing the TrackChangesCloud External Event
• Line Subcategory Filter, Modification Tracker and NW
• SDK, Add-In Wizard and TrackChanges Updates