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

# TBasicActionLink.OnChange

Event handler triggered when the action's properties change

## Declaration

`public property TBasicActionLink.OnChange: TNotifyEvent read FOnChange write FOnChange;`

## Description

OnChange is the event triggered when the action's properties change.

Application programmers should never need to assign this event. Component programmers can assign this event to have a client control reflect any changes in an Action's properties.

## See also

TBasicActionLink.Change |  | Executed whenever the Action is changed.
TBasicAction.Change |  | Calls the OnChange handler.