unit1.pas

ADO三层数据库开发

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, Grids, DBGrids, StdCtrls, ExtCtrls, ComCtrls;

type
  TForm1 = class(TForm)
    Button1: TButton;
    DBGrid1: TDBGrid;
    Edit1: TEdit;
    Label1: TLabel;
    StatusBar1: TStatusBar;
    Timer1: TTimer;
    procedure FormCreate(Sender: TObject);
    procedure Timer1Timer(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}
uses unit2;
procedure TForm1.Button1Click(Sender: TObject);
begin
if trim(edit1.Text)<>'' then
begin
  with datamodule2.ClientDataSet1  do
      begin
         close;
         commandtext:=edit1.text;
         try
         open;
         except
         application.MessageBox('语句出现错误，请检查！','提示',0);
         end;
      end;
end;
end;

procedure TForm1.Timer1Timer(Sender: TObject);
begin
statusbar1.Panels[1].Text:=datetimetostr(now());
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
statusbar1.Panels[1].Text:=datetimetostr(now());
end;

end.