ABL also provides an OFF-END event for when a query on a ProDataSet temp-table buffer is positioned past the last row. You can use this event to retrieve additional data source rows to add at the bottom of a ProDataSet temp-table (for example, in batches when there are too many data source rows to retrieve at one time). The OFF-END event is similar to the QUERY-OFF-END attribute, which is set to TRUE whenever the associated query object is positioned past the last row. The difference is that you must test the QUERY-OFF-END attribute for this condition at a specific place in your application code, whereas the OFF-END event procedure executes like a trigger whenever the event occurs. For more information about the OFF-END event on a ProDataSet temp-table query, see the
“ProDataSet events” section.