passunit2.~pas

来自「《delphi 7.0_8.0课程设计与系统开发案例》随书代码」· ~PAS 代码 · 共 56 行

unit passUnit2;

interface

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

type
  TForm2 = class(TForm)
    DataSource1: TDataSource;
    Panel1: TPanel;
    Label2: TLabel;
    Edit1: TEdit;
    SpeedButton1: TSpeedButton;
    Memo1: TMemo;
    Table1: TTable;
    procedure SpeedButton1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form2: TForm2;

implementation

uses MainUnit4;

{$R *.dfm}

procedure TForm2.SpeedButton1Click(Sender: TObject);
begin
table1.refresh;
with table1 do
try
  disablecontrols;
  filtered:=false;
  memo1.Text:='用户密码='+''''+edit1.Text+'''';
    filter:=Memo1.text;
    filtered:=true;
    finally
    enablecontrols;
    if table1.recordcount=0 then begin
    showmessage('对不起，你不是合法用户，请确认权限!');
    end else begin
    form2.Close;
    form4.show;
    table1.close;
    table1.open;
end;
end.