unit16.pas

一个简单的旅游管理系统

unit Unit16;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, DB, ADODB;

type
  TForm16 = class(TForm)
    GroupBox1: TGroupBox;
    Label1: TLabel;
    Label2: TLabel;
    Label4: TLabel;
    Label3: TLabel;
    Label7: TLabel;
    Edit1: TEdit;
    Edit2: TEdit;
    Edit3: TEdit;
    Edit4: TEdit;
    Memo1: TMemo;
    Button14: TButton;
    Button12: TButton;
    Button13: TButton;
    Label5: TLabel;
    ADOConnection1: TADOConnection;
    ADOQuery1: TADOQuery;
    Label6: TLabel;
    procedure Button12Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure Button13Click(Sender: TObject);
    procedure Button14Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form16: TForm16;

implementation

uses Unit15;

{$R *.dfm}

procedure TForm16.Button12Click(Sender: TObject);
begin
edit1.Text:='';
edit2.Text:='';
edit3.Text:='';
edit4.Text:='';
memo1.Text:='';
end;

procedure TForm16.FormCreate(Sender: TObject);
begin
edit1.Text:='';
edit2.Text:='';
edit3.Text:='';
edit4.Text:='';
memo1.Text:='';
end;

procedure TForm16.Button13Click(Sender: TObject);
begin
form16.Close;
end;

procedure TForm16.Button14Click(Sender: TObject);
begin
if(edit1.text='') then
begin
showmessage('请输入酒店名称');
exit;
end;
adoquery1.close;
adoquery1.sql.clear;
adoquery1.sql.add('select * from 酒店信息表 where 酒店名称=:name');
adoquery1.Parameters.ParamByName('name').Value:=trim(edit1.text);
adoquery1.Open;
if adoquery1.Bof and adoquery1.Eof then
begin
adoquery1.sql.Clear;
adoquery1.SQL.Add('insert into 酒店信息表(酒店名称,所处位置,星级,价位,服务介绍)');
adoquery1.SQL.Add(' values(:name,:where,:xing,:price,:fuwu)');
adoquery1.Parameters.ParamByName('name').value:=trim(edit1.text);
adoquery1.Parameters.ParamByName('where').value:=trim(edit2.text);
adoquery1.Parameters.ParamByName('xing').value:=trim(edit3.text);
adoquery1.Parameters.ParamByName('price').value:=trim(edit4.text);
adoquery1.Parameters.ParamByName('fuwu').value:=trim(memo1.text);
adoquery1.ExecSQL;
showmessage('添加酒店成功');
end
else
begin
showmessage('酒店名称已经存在');
adoquery1.Close;
exit;
end;
end;

end.