public FormDetail(FormManage form3, BookShelf shelf, Client client)//从图书管理界面的添加书籍进入
 {
     InitializeComponent();
     this.Flag                    = 3;
     resPath                      = BookShelfService.findPath();
     this.currentShelf            = shelf;
     this.currentClient           = client;
     this.formManage              = form3;
     this.shelfIdTextBox.Text     = shelf.BookShelfId;
     this.shelfIdTextBox.ReadOnly = true;
     this.appointButton.Visible   = false;
     this.lendButton.Visible      = false;
     this.recommendButton.Visible = false;
 }