unit4.pas

应用ADO技术在Delphi中进行客户信息管理系统的开发。系统设计分为数据库设计和功能模块设计两部分。本系统的数据分为两部分：客户信息和系统用户信息。所以要设计两个表：Customers和Users

unit Unit4;

interface

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

type
  TFrmSupt = class(TForm)
    BtnReturn: TBitBtn;
    DSCustom: TDataSource;
    PageControl1: TPageControl;
    TabSheetInput: TTabSheet;
    TabSheetUpdate: TTabSheet;
    TabSheetDelete: TTabSheet;
    DBGrd1: TDBGrid;
    DBNvgt1: TDBNavigator;
    DBNvgt2: TDBNavigator;
    DBNvgt3: TDBNavigator;
    DBGrd2: TDBGrid;
    DBGrd3: TDBGrid;
    procedure BtnReturnClick(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  FrmSupt: TFrmSupt;

implementation

uses Unit2;

{$R *.dfm}

procedure TFrmSupt.FormCreate(Sender: TObject);
begin
  DMCu.ADOTblCu.Active:=true;
end;

procedure TFrmSupt.FormClose(Sender: TObject; var Action: TCloseAction);
begin
  DMCu.ADOTblCu.Active:=false;
end;

procedure TFrmSupt.BtnReturnClick(Sender: TObject);
begin
  close;
end;

end.