bk.~pas

来自「一个不错的酒店管理系统 用delphi7实现」· ~PAS 代码 · 共 86 行

unit BK;

interface

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

type
  TBKForm = class(TForm)
    Table1: TTable;
    DataSource1: TDataSource;
    DBGrid1: TDBGrid;
    Label1: TLabel;
    EditTableNo: TEdit;
    Btbook: TBitBtn;
    BtExit: TBitBtn;
    procedure BtbookClick(Sender: TObject);
    procedure BtExitClick(Sender: TObject);
    procedure FormShow(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  BKForm: TBKForm;
  C_AppTerminate:boolean;
implementation

{$R *.dfm}

procedure TBKForm.BtbookClick(Sender: TObject);
begin
 if Table1.FindKey([Trim(EditTableNo.Text)])=False then
begin
 showmessage('error tableno ! again');
 EditTableNo.Text:='';
 EditTableNo.SetFocus;
 Exit;
 end;
 if Table1.FieldValues['Status']<> 'Free' then
 begin
  showmessage('booked! again');
  EditTableNo.Text:='';
  EditTableNo.SetFocus;
  Exit;
  end;
  with Table1 do
  begin
   Edit;
   FieldByName('Status').AsString:='Booked';
   Post;
   Refresh;
   end;
  Table1.Close;
  C_AppTerminate:=False;
  BKForm.Close;
end;

procedure TBKForm.BtExitClick(Sender: TObject);
begin
 C_AppTerminate:=False;
 BKForm.Close;
 Table1.Close;
 Exit;
end;

procedure TBKForm.FormShow(Sender: TObject);
begin
 Table1.Open;
 C_AppTerminate:=true;
end;

procedure TBKForm.FormClose(Sender: TObject; var Action: TCloseAction);
begin
 //if C_AppTerminate=true then
 //Application.Terminate;
 Table1.Close;
 Exit;
end;

end.