unit1.pas

图书管理 很好。很好 ado 多用户不错

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Edit13: TEdit;
    Label17: TLabel;
    DBGrid2: TDBGrid;
    Button2: TButton;
    XPMenu1: TXPMenu;
    Panel1: TPanel;
    Button1: TButton;
    procedure Button2Click(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure Button1Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation
uses unit6, Unit8;

{$R *.dfm}

procedure TForm1.Button2Click(Sender: TObject);
begin
   dm.ADOQuery2.Close ;
   dm.ADOQuery2.SQL.Clear ;
   dm.ADOQuery2.SQL.Add('select * from dangaan');
   dm.ADOQuery2.SQL.Add('where 姓名 like'''+edit13.text+'%''');
   dm.ADOQuery2.Open ;
   panel1.Caption:='总共找到 '+inttostr(dm.ADOQuery2.RecordCount)+' 条记录';

end;

procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
Action := cafree;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
form8:=tform8.create(application);
form8.Hide;
form8.QuickRep1.Preview;
end;

procedure TForm1.FormCreate(Sender: TObject);
 var
 mypath:string;
begin
 dm.ADOConnection1.Close;
 MyPath:=ExtractFilePath(ParamStr(0));
  dm.ADOConnection1.ConnectionString:='Provider=Microsoft.Jet.OLEDB.4.0;Data Source='+
  MyPath+'db1.mdb;Persist Security Info=False';
 try
  dm.ADOConnection1.Open;

  except
   application.MessageBox('找不到数据库，引起该问题的原因是数据库文件可能被人为删除或改名.','无法打开数据库',0);
   application.Terminate;
  end;
end;

end.