Posted 31 March 2020, 4:20 pm ESTThis following example was produced by GrapeCity Support based on a problem I reported (Case #426728) in a recent version of Wijmo. My agent forwarded it to the Wijmo development team, but perhaps I can get a quick answer on the Forum.
The flexSheet has showSort and allowSorting turned on -- but when you click in the column header, but the sorting arrow does not appear as expected. And you cannot sort the sheet.
Similar code has been working for me in an earlier version of Wijmo from 2018.