TField.OnChange property
Event triggered when the field's value has changed.
Declaration
property OnChange: TFieldNotifyEvent read FOnChange write FOnChange;Description
OnChange is triggered whenever the field's value has been changed.
It is triggered only after the new contents have been written to the dataset buffer, so it can be used to react to changes in the field's content.
To prevent the writing of changes to the buffer, use the
OnValidate event. It is not allowed to change the state of the dataset
or the contents of the field during the execution of this event handler: doing so may lead to infinite loops and other unexpected results.See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.