TTMSFNCToolBarItemPicker.OnBeforeDropDown Event

Fires before the drop-down popup opens. Use it to update popup content dynamically.

API unit family: TMSFNCToolBar Declaring type: TTMSFNCToolBarItemPicker Inherited from: TTMSFNCToolBarButton Type: TNotifyEvent

Syntax

FMX.TMSFNCToolBar.hppPascalC++

property OnBeforeDropDown: TNotifyEvent;

__property System::Classes::TNotifyEvent OnBeforeDropDown = {read=FOnBeforeDropDown, write=FOnBeforeDropDown};