Vcl.StdCtrls.TCustomCombo.OnDropDown

• Up to Parent: TCustomCombo

Delphi

property OnDropDown: TNotifyEvent read FOnDropDown write FOnDropDown;

C++

__property System::Classes::TNotifyEvent OnDropDown = {read=FOnDropDown, write=FOnDropDown};

Properties

Type	Visibility	Source	Unit	Parent
event	protected	Vcl.StdCtrls.pas Vcl.StdCtrls.hpp	Vcl.StdCtrls	TCustomCombo

Description

Occurs when the user opens the drop-down list.

Write an OnDropDown event handler to implement special processing that needs to occur only when the drop-down list is activated.

See Also

• DroppedDown

• OnCloseUp

Code Examples

• OnDropDown (Delphi)
• OnDropDown (C++)