users.~pas

一个很简单的三层数据库程序,包括毕业论文, 因为简单,所以容易供参考学习!

unit users;

interface

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

type
  TFm_user = class(TForm)
    DBGrid1: TDBGrid;
    Label1: TLabel;
    Label2: TLabel;
    Edit1: TEdit;
    Edit2: TEdit;
    Label3: TLabel;
    ComboBox1: TComboBox;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Fm_user: TFm_user;

implementation

uses data;

{$R *.dfm}

procedure TFm_user.Button1Click(Sender: TObject);
begin
  fm_data.Cd_users.Insert;
  fm_data.Cd_users.FieldByName('userid').AsString:=edit1.Text;
  fm_data.Cd_users.FieldByName('pin').AsString:=edit2.Text;
  fm_data.Cd_users.FieldByName('right').AsString:=ComboBox1.Text;
  fm_data.Cd_users.Post;
  fm_data.Cd_users.ApplyUpdates(0);
end;

procedure TFm_user.Button2Click(Sender: TObject);
begin
   close;
end;

procedure TFm_user.Button3Click(Sender: TObject);
begin
  fm_data.Cd_users.Edit;
  fm_data.Cd_users.Delete;
  fm_data.Cd_users.Post;
  fm_data.Cd_users.ApplyUpdates(0);
end;

end.