Multiple levels of TreeGrid with different columns


is it possible to have TreeGrid with each level having own columns (and therefore own header row, when expanded)? In the examples I see only cases where inner level records have exectly same columns as outer level records. For example, I want outer level to be Author objects, with columns like Name, Birthdate, and after expanding, inner records of type Book, with columns like Title, Year (perhaps third level Chapters, etc.).


at least the current version of TreeGrid doesn’t support that. I suppose it’s possible to implement something like that, but it would take a quite heavy rewriting of Grid to get that working.