unit11.pas

一个可以用于书店的图书信息管理系统

unit Unit11;

interface

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

type
  TForm11 = class(TForm)
    Image1: TImage;
    Label1: TLabel;
    Label2: TLabel;
    Edit1: TEdit;
    Label3: TLabel;
    Edit2: TEdit;
    Edit3: TEdit;
    DBGrid1: TDBGrid;
    ADOQuery1: TADOQuery;
    DataSource1: TDataSource;
    CheckBox1: TCheckBox;
    BitBtn2: TBitBtn;
    BitBtn3: TBitBtn;
    BitBtn4: TBitBtn;
    DBLookupComboBox1: TDBLookupComboBox;
    DBEdit1: TDBEdit;
    DBEdit2: TDBEdit;
    DBEdit3: TDBEdit;
    DBEdit4: TDBEdit;
    DBEdit5: TDBEdit;
    DBEdit6: TDBEdit;
    DBEdit7: TDBEdit;
    Label5: TLabel;
    Label6: TLabel;
    Label7: TLabel;
    Label8: TLabel;
    Label9: TLabel;
    Label10: TLabel;
    Label11: TLabel;
    Label12: TLabel;
    BitBtn1: TBitBtn;
    ADOQuery2: TADOQuery;
    DataSource2: TDataSource;
    procedure FormCreate(Sender: TObject);
    procedure BitBtn2Click(Sender: TObject);
    procedure BitBtn1Click(Sender: TObject);
    procedure BitBtn4Click(Sender: TObject);
    procedure BitBtn3Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form11: TForm11;

implementation

uses Unit2;

{$R *.dfm}

procedure TForm11.FormCreate(Sender: TObject);
begin
dbedit7.enabled:=false;
adoquery1.Close;
end;       
procedure TForm11.BitBtn2Click(Sender: TObject);
Var
s_sql:string;
begin
  adoquery1.Close;
  adoquery1.SQL.clear;
  s_sql:='select * from 图书信息 where 1=1';
  if not checkbox1.Checked then
  begin
  if edit1.text<>'' then
  s_sql:=s_sql+'and 图书编号='''+edit1.text+'''';
  if edit2.text<>'' then
  s_sql:=s_sql+'and 图书名称='''+edit2.text+'''';
  if edit3.text<>'' then
  s_sql:=s_sql+'and 出版社='''+edit3.text+'''';
end
  else
  begin
   if edit1.text<>'' then
  s_sql:=s_sql+'and 图书编号 like ''%'+edit1.text+'%''';
  if edit2.text<>'' then
  s_sql:=s_sql+'and 图书名称 like ''%'+edit2.text+'%''';
  if edit3.text<>'' then
  s_sql:=s_sql+'and 出版社 like ''%'+edit3.text+'%''';
  end;
  adoquery1.sql.add(s_sql);
  adoquery1.Open;
  if adoquery1.RecordCount=0 then
  application.MessageBox('找不到该图书记录，请查看自己的查询条件！','图书管理系统-提示信息',mb_ok);
  end;

procedure TForm11.BitBtn1Click(Sender: TObject);
begin
form11.Close;
form2.show;
end;

procedure TForm11.BitBtn4Click(Sender: TObject);
begin
adoquery1.Post;
showmessage('新信息保存成功');
end;

procedure TForm11.BitBtn3Click(Sender: TObject);
begin
if messagebox(0,'确实要删除该图书信息吗？','图书管理系统-提示信息',mb_okcancel+mb_iconquestion+mb_defbutton3)=idok then
adoquery1.Delete;
end;

end.