Delphi: Canceling a TDataSet.Post in an OnBeforePost Event

Question

On our main data entry screen, we have an OK/Cancel dialog in the OnBeforePost event.

• OK lets things take their course
• Cancel right

Answer 1

Calling the method Abort (from the unit System, if I recall correctly) raises a silent EAbort exception, which cancels just the current operation. That should work.

(Btw: this method of cancelling a databaset operation is also described somewhere deep in the help system as the 'normal' way to achieve this --- that's where I got this technique from originally).