unit6.pas

Delphi 7基础编程的源代码

unit Unit6;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, DB, DBTables, StdCtrls, Mask, DBCtrls, ExtCtrls;

type
  Tupdatestudentform = class(TForm)
    DBNavigator1: TDBNavigator;
    DBEdit1: TDBEdit;
    DBEdit2: TDBEdit;
    DBEdit3: TDBEdit;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Button1: TButton;
    Button2: TButton;
    DataSource1: TDataSource;
    Table1: TTable;
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  updatestudentform: Tupdatestudentform;

implementation

{$R *.dfm}

procedure Tupdatestudentform.FormCreate(Sender: TObject);
begin
  table1.CachedUpdates:=True;
end;

procedure Tupdatestudentform.Button1Click(Sender: TObject);
begin
  table1.ApplyUpdates;
end;

procedure Tupdatestudentform.Button2Click(Sender: TObject);
begin
  table1.CancelUpdates;
  updatestudentform.Close;
end;

end.