unit Dlg1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TFrm_Dlg1 = class(TForm)
    Btn_Ok: TButton;
    Btn_Cancel: TButton;
    Edt_Cname: TEdit;
    Label1: TLabel;
    procedure Btn_OkClick(Sender: TObject);
    procedure FormKeyDown(Sender: TObject; var Key: Word;
      Shift: TShiftState);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Frm_Dlg1: TFrm_Dlg1;

implementation

{$R *.dfm}

procedure TFrm_Dlg1.Btn_OkClick(Sender: TObject);
begin
  Edt_Cname.Text := trim(Edt_Cname.Text);
end;

procedure TFrm_Dlg1.FormKeyDown(Sender: TObject; var Key: Word;
  Shift: TShiftState);
begin
  case key of
    vk_return:
    begin
      SelectNext(ActiveControl As Twincontrol,true,true);
      key:=0;
    end;
    vk_up,vk_down:
    begin
      SelectNext(ActiveControl As Twincontrol,key=vk_down,true);
      key:=0;
    end;
  end;
end;

end.