Vcl.DBCtrls.TCustomDBLookupComboBox.UpdateAction

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Delphi

function UpdateAction(Action: TBasicAction): Boolean; override;

C++

virtual bool __fastcall UpdateAction(System::Classes::TBasicAction* Action);

Properties

Type Visibility Source Unit Parent
function public
Vcl.DBCtrls.pas
Vcl.DBCtrls.hpp
Vcl.DBCtrls TCustomDBLookupComboBox

Description

Updates an action to reflect the current state of the TDBLookupControl.

Vcl.DBCtrls.TCustomDBLookupComboBox.UpdateAction inherits from Vcl.DBCtrls.TDBLookupControl.UpdateAction. All content below this line refers to Vcl.DBCtrls.TDBLookupControl.UpdateAction.

Updates an action to reflect the current state of the TDBLookupControl.

UpdateAction is called automatically when the application is idle to give the TDBLookupControl an opportunity to update associated actions. This allows actions to be grayed, checked, or to otherwise reflect the status of the TDBLookupControl they target.

The Action parameter specifies the action component that should be updated. UpdateAction returns True if the action component now reflects the state of the component, and False if it did not know how to update the action.

See Also