Occurs after a script calls the Update method and just before changes in the DataWindow or DataStore are sent to the database.
PowerBuilder event information Event ID: pbm_dwnupdatestart
Web DataWindow client control event information Event name: UpdateStart
Web ActiveX event information Event name: beforeUpdate
Set the return code to affect the outcome of the event:
0 Continue processing
1 Do not perform the update
For information on setting the return code in a particular environment, see “About return values for DataWindow events”.