unit5.~pas

高校图书管理系统采用Delphi结合数据库

unit Unit5;

interface

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

type
  Tfrm_xxxg = class(TForm)
    Label1: TLabel;
    DBGrid1: TDBGrid;
    GroupBox1: TGroupBox;
    DBNavigator1: TDBNavigator;
    Table1: TTable;
    DataSource1: TDataSource;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    Button4: TButton;
    Button5: TButton;
    Button6: TButton;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    Label6: TLabel;
    DBEdit1: TDBEdit;
    DBEdit2: TDBEdit;
    DBEdit3: TDBEdit;
    DBEdit4: TDBEdit;
    DBEdit5: TDBEdit;
    Label7: TLabel;
    DBEdit6: TDBEdit;
    Label8: TLabel;
    DBEdit7: TDBEdit;
    Label9: TLabel;
    DBEdit8: TDBEdit;
    Label10: TLabel;
    DBEdit9: TDBEdit;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure Button5Click(Sender: TObject);
    procedure Button6Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  frm_xxxg: Tfrm_xxxg;

implementation

{$R *.dfm}
procedure Tfrm_xxxg.Button1Click(Sender: TObject);
begin
groupbox1.Enabled :=true;
table1.Append ;
button1.Enabled :=false;
button2.Enabled :=false;
button3.Enabled :=false;
button5.Enabled :=true;
button4.Enabled :=true;
end;

procedure Tfrm_xxxg.Button2Click(Sender: TObject);
begin
groupbox1.Enabled :=true;
table1.Edit ;
 button1.Enabled :=false;
button2.Enabled :=false;
button3.Enabled :=false;
button5.Enabled :=true;
button4.Enabled :=true;
end;

procedure Tfrm_xxxg.Button3Click(Sender: TObject);
var
a:integer;
begin
a:=application.MessageBox('确定删除吗？','提示',mb_yesno) ;
if a=idok then table1.Delete ;
end;

procedure Tfrm_xxxg.Button4Click(Sender: TObject);
begin
table1.Post;
groupbox1.Enabled :=false;
button1.Enabled :=true;
button2.Enabled :=true;
button3.Enabled :=true;
button5.Enabled :=false;
button4.Enabled :=false;
end;

procedure Tfrm_xxxg.Button5Click(Sender: TObject);
begin
 table1.Cancel ;
groupbox1.Enabled :=false;
button1.Enabled :=true;
button2.Enabled :=true;
button3.Enabled :=true;
button5.Enabled :=false;
button4.Enabled :=false;
end;

procedure Tfrm_xxxg.Button6Click(Sender: TObject);
begin
close;
end;

end.