Vcl.DBCtrls.TDBEdit.KeyPress
Delphi
procedure KeyPress(var Key: Char); override;
C++
DYNAMIC void __fastcall KeyPress(System::WideChar &Key);
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
procedure function |
protected | Vcl.DBCtrls.pas Vcl.DBCtrls.hpp |
Vcl.DBCtrls | TDBEdit |
Description
Supplements the inherited method to handle any keystrokes that alter the state of the edit control.
KeyPress first calls the inherited method, which calls the OnKeyPress event handler. Next, KeyPress discards the keystroke if it is not a valid character for the field type, or if there is no link to a database field. Valid characters cause KeyPress to attempt to put the dataset into edit mode.
Pressing the Escape key causes KeyPress to call Reset, throwing away all unposted edits.
Note: KeyPress is a protected method. Applications cannot call it directly. It is called automatically in response to user actions.