[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] Reference for unit 'DB' (#fcl)


Event triggered before a Cancel operation.


Source position: db.pas line 1756

public property TDataSet.BeforeCancel : TDataSetNotifyEvent
  read FBeforeCancel
  write FBeforeCancel;


BeforeCancel is triggered at the start of the TDataset.Cancel operation, when the state is still one of the editing states (dsEdit,dsInsert). The event handler can be used to abort the cancel operation: if an exception is raised during the event handler, then the cancel operation stops. If the dataset was not in one of the editing states when the Cancel method was called, then the event is not triggered.

See also



Event triggered after a Cancel operation.



Cancel the current editing operation



Current operational state of the dataset

Documentation generated on: May 14 2021