private void Bbi_Reservation_ItemClick(object sender, ItemClickEventArgs e)
        {
            var form = new FrmReservation();

            if (CheckIsExist(form.Text))
            {
                return;
            }
            form.MdiParent = this;
            form.Show();
        }
        /// <summary>
        ///
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Nbc_Menu_LinkClicked(object sender, NavBarLinkEventArgs e)
        {
            var      formName = e.Link.Item.Tag.ToString();
            XtraForm form;

            switch (formName)
            {
            case "101":
                form             = new FrmBorrow();
                GlobalCache.Type = typeof(FrmBorrow);

                #region Test

                //ribbon.Pages[0].Groups[0].ItemLinks.Add(new BarButtonItem() {
                //Caption = "test", ImageOptions = { Image = Image.FromFile(@"C:\Users\ASUS\Pictures\ICON\Exit.png") }
                //});

                #endregion

                break;

            case "102":
                form             = new FrmReservation();
                GlobalCache.Type = typeof(FrmReservation);
                break;

            case "103":
                form             = new FrmBorrowInfos();
                GlobalCache.Type = typeof(FrmBorrowInfos);
                break;

            case "104":
                form             = new FrmReservationInfos();
                GlobalCache.Type = typeof(FrmReservationInfos);
                break;

            case "105":
                form             = new FrmFinePayments();
                GlobalCache.Type = typeof(FrmFinePayments);
                break;

            case "106":
                form             = new FrmBooks();
                GlobalCache.Type = typeof(FrmBooks);
                break;

            case "201":
                form             = new FrmBooksInfo();
                GlobalCache.Type = typeof(FrmBooksInfo);
                break;

            case "202":
                form             = new FrmBooks();
                GlobalCache.Type = typeof(FrmBooks);
                break;

            case "401":
                form             = new FrmEmployees();
                GlobalCache.Type = typeof(FrmEmployees);
                break;

            case "301":
                form             = new FrmStudents();
                GlobalCache.Type = typeof(FrmStudents);
                break;

            case "501":
                form             = new FrmAdmins();
                GlobalCache.Type = typeof(FrmAdmins);
                break;

            case "502":
                form             = new FrmEmpower();
                GlobalCache.Type = typeof(FrmEmpower);
                break;

            case "601":
                form             = new FrmPublishingHouse();
                GlobalCache.Type = typeof(FrmPublishingHouse);
                break;

            case "602":
                form             = new FrmBookCategory();
                GlobalCache.Type = typeof(FrmBookCategory);
                break;

            default:
                form = new XtraForm();
                break;
            }

            if (CheckIsExist(form.Text))
            {
                return;
            }
            form.MdiParent = this;
            _handle        = OverlayScreenForm.ShowProgressPanel(this);
            form.Show();
            OverlayScreenForm.CloseProgressPanel(_handle);
        }