Vcl.StdCtrls.TComboBox.OnDropDown
Delphi
property OnDropDown: TNotifyEvent read FOnDropDown write FOnDropDown;
C++
__property OnDropDown;
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| event | published | Vcl.StdCtrls.pas Vcl.StdCtrls.hpp |
Vcl.StdCtrls | TComboBox |
Description
Occurs when the user opens the drop-down list.
Vcl.StdCtrls.TComboBox.OnDropDown inherits from Vcl.StdCtrls.TCustomCombo.OnDropDown. All content below this line refers to Vcl.StdCtrls.TCustomCombo.OnDropDown.
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
Code Examples