meunztbcx.pas

来自「delphi+sql server 我是delphi的初学者」· PAS 代码 · 共 68 行

unit meunztbcx;

interface

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

type
  Tfrmmeunztbcx = class(TForm)
    Edbegin: TEdit;
    Edlast: TEdit;
    Label1: TLabel;
    Label2: TLabel;
    BitBtn1: TBitBtn;
    BitBtn2: TBitBtn;
    procedure BitBtn2Click(Sender: TObject);
    procedure FormShow(Sender: TObject);
    procedure EdbeginKeyPress(Sender: TObject; var Key: Char);
    procedure EdbeginKeyDown(Sender: TObject; var Key: Word;
      Shift: TShiftState);
    procedure EdlastKeyPress(Sender: TObject; var Key: Char);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  frmmeunztbcx: Tfrmmeunztbcx;

implementation

{$R *.dfm}

procedure Tfrmmeunztbcx.BitBtn2Click(Sender: TObject);
begin
close;
end;

procedure Tfrmmeunztbcx.FormShow(Sender: TObject);
begin
  Edbegin.Text:='';
  Edlast.Text:='';
end;

procedure Tfrmmeunztbcx.EdbeginKeyPress(Sender: TObject; var Key: Char);
begin
   if not (Key in ['0'..'9',#8]) then
   key:=#0;
end;

procedure Tfrmmeunztbcx.EdbeginKeyDown(Sender: TObject; var Key: Word;
  Shift: TShiftState);
begin
  if Key=$0D THEN
  Edlast.SetFocus;
end;

procedure Tfrmmeunztbcx.EdlastKeyPress(Sender: TObject; var Key: Char);
begin
   if not (Key in ['0'..'9',#8]) then
   key:=#0;

end;

end.