FMX.Controls.TControl.OnExit

• Up to Parent: TControl

Delphi

property OnExit: TNotifyEvent read FOnExit write FOnExit;

C++

__property System::Classes::TNotifyEvent OnExit = {read=FOnExit, write=FOnExit};

Properties

Type	Visibility	Source	Unit	Parent
event	public	FMX.Controls.pas FMX.Controls.hpp	FMX.Controls	TControl

Description

Occurs when the input focus is taken from the control.

OnExit also occurs when DoExit is called.

Write an event handler for OnExit to specify what happens when the input focus is taken from the control.

Note: For example in TEdit control, you may want to prevent the user from leaving the control until a certain value has been entered into it. This can be done with the code like this:

procedure TForm1.Edit1Exit(Sender: TObject);
begin
  if Edit1.Text <> 'Hello' then
   Edit1.Abort;
end;

Notice that the code like Edit1.SetFocus; does not have the expected effect.

See Also

• System.Classes.TNotifyEvent
• FMX.Controls.TControl.DoExit
• FMX.Controls.TControl.OnEnter