unit15.pas

高校图书管理系统采用Delphi结合数据库

unit Unit15;

interface

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

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

var
  frm_jfgl: Tfrm_jfgl;

implementation

{$R *.dfm}

procedure Tfrm_jfgl.Button2Click(Sender: TObject);
begin
   GroupBox1.Enabled :=true;
   table1.Edit;
   button1.Enabled :=false;
   button2.Enabled :=false;
   button3.Enabled :=false;
   button4.Enabled :=true;
   button5.Enabled :=true;
end;
procedure Tfrm_jfgl.Button5Click(Sender: TObject);
begin
   table1.Cancel;
   button1.Enabled :=true;
   button2.Enabled :=true;
   button3.Enabled :=true;
   button4.Enabled :=false;
   button5.Enabled :=false;
   GroupBox1.Enabled:=false;
end;
procedure Tfrm_jfgl.Button3Click(Sender: TObject);
var
   rt:integer;
begin
   rt:=application.MessageBox('确定删除本记录吗？','确认',mb_OKcancel);
   if rt=idok then table1.Delete;
end;

procedure Tfrm_jfgl.Button4Click(Sender: TObject);
begin
   table1.Post;
   button1.Enabled :=true;
   button2.Enabled :=true;
   button3.Enabled :=true;
   button4.Enabled :=false;
   button5.Enabled :=false;
   GroupBox1.Enabled:=false;
end;

procedure Tfrm_jfgl.Button6Click(Sender: TObject);
begin
   close;
end;
procedure Tfrm_jfgl.Button1Click(Sender: TObject);
begin
   GroupBox1.Enabled :=true;
   table1.Append;
   button1.Enabled :=false;
   button2.Enabled :=false;
   button3.Enabled :=false;
   button4.Enabled :=true;
   button5.Enabled :=true;
end;
end.