Hello,
there seems to be a problem since the last update. Using "OnBeforeDropItem" and AtoColumn causes an error. This problem didn't exist in previous versions. It's easy to reproduce in the small example.
Unit1.zip (6.9 KB)
Thank you
Steffen
Thanks for reporting, we have identified this issue and have applied a fix. Note that the fix will be marked as one for the underlying TableView in the next version.