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

TDataLink.UpdateAction

Update handler for actions

Declaration

Source position: db.pas line 1775

public function TDataLink.UpdateAction(

  Action: TBasicAction

):Boolean; virtual;

Arguments

Action

  

Action to check

Function result

True if the action handles the datalink's datasource.

Description

UpdateAction implements action update support. It should never be necessary to call UpdateAction from program code, as it is called automatically whenever a target control needs to update an action. This method must be overridden in case any specific action must be taken when the action must be updated. The implementation in TDatalink checks if the action handles the datasource, and then calls Action.UpdateTarget, passing it the datasource. If so, it returns True.

See also

TDataLink.ExecuteAction

  

Execute action


Documentation generated on: Sep 28 2017