DBKit.SearchResultsListBox selected row

Using 2023.4 and DBKit.SearchResultsListBox (Web) how do I get the selected record from a listbox? I want to insert other table records based on the selected record and the insert sql is complex. I would really prefer to get a RowSet or DatabaseRow.

Do I have to get the id of the record at the selected row and fetch records again? I see currentRow in the Connector but that is private.