unit7.pas

来自「一个可以用于书店的图书信息管理系统」· PAS 代码 · 共 92 行

unit Unit7;

interface

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

type
  TForm10 = class(TForm)
    Image1: TImage;
    Panel1: TPanel;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    ADOQuery1: TADOQuery;
    DataSource1: TDataSource;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Edit1: TEdit;
    Edit2: TEdit;
    Edit3: TEdit;
    Button4: TButton;
    DBGrid1: TDBGrid;
    Label4: TLabel;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form10: TForm10;

implementation

uses Unit2;

{$R *.dfm}

procedure TForm10.Button1Click(Sender: TObject);
Var
s_sql:string;
begin
adoquery1.close;
adoquery1.SQL.Clear;
s_sql:='insert into booktype values('''+edit1.text+''','''+edit2.text+''','''+edit3.text+''')';
adoquery1.SQL.Add(s_sql);
ADOQuery1.execsql;
Application.MessageBox('新图书类型添加成功!','图书管理系统-提示信息',mb_ok);
edit1.text:='';
edit2.text:='';
edit3.text:='';
end;

procedure TForm10.Button2Click(Sender: TObject);
begin
if messagebox(0,'真的要删除该图书类型？','图书管理系统-提示信息',mb_okcancel+mb_iconquestion+mb_defbutton2)=idok then
adoquery1.Delete;
adoquery1.execsql;
adoquery1.Close;
end;

procedure TForm10.Button3Click(Sender: TObject);
begin
close;
form2.show;
end;

procedure TForm10.Button4Click(Sender: TObject);
Var
s_sql:string;
begin
adoquery1.Close;
adoquery1.SQL.Clear;
s_sql:='select * from booktype where 图书类型编号='''+edit1.text+'''';
adoquery1.SQL.Add(s_sql);
adoquery1.Open;
if adoquery1.RecordCount=0 then
begin
application.MessageBox('找不到该记录，请重新输入','提示信息',mb_ok);
 edit1.text:='';
 end;
end;

end.