unit1.~pas

sql2000工程实践一书第14张源代码

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    ADOTable1: TADOTable;
    DataSource1: TDataSource;
    DBGrid1: TDBGrid;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    Button4: TButton;
    Button5: TButton;
    Button6: TButton;
    Edit1: TEdit;
    Edit2: TEdit;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure Button5Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
ADOTable1.First;//移动指针到第一条
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
ADOTable1.Prior;//移动指针到上一条
end;

procedure TForm1.Button3Click(Sender: TObject);
begin
ADOTable1.Next;//移动指针到下一条
end;

procedure TForm1.Button4Click(Sender: TObject);
begin
ADOTable1.Last;//移动指针到末一条
end;

procedure TForm1.Button5Click(Sender: TObject);
begin
ADOTable1.MoveBy(StrToInt(Edit1.Text));//向前或向后移动若干位
end;

end.