FireDAC.Comp.Client.TFDQuery.BeforeCancel

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Delphi

property BeforeCancel: TDataSetNotifyEvent read FBeforeCancel write FBeforeCancel;

C++

__property BeforeCancel;

Properties

Type Visibility Source Unit Parent
event published
FireDAC.Comp.Client.pas
FireDAC.Comp.Client.hpp
FireDAC.Comp.Client TFDQuery

Description

Occurs before an application executes a request to cancel changes to the active record.

FireDAC.Comp.Client.TFDQuery.BeforeCancel inherits from Data.DB.TDataSet.BeforeCancel. All content below this line refers to Data.DB.TDataSet.BeforeCancel.

Occurs before an application executes a request to cancel changes to the active record.

Write a BeforeCancel event to take specific action before an application carries out a request to cancel changes. BeforeCancel is called by the Cancel method before it cancels a dataset operation such as Edit, Insert, or Delete.

An application might use the BeforeCancel event to record a user's changes in an undo buffer.

BeforeCancel is an event handler of type Data.DB.TDataSetNotifyEvent.

See Also