Questions with Modal Window

	
                         ...

                         /*
			 * We can call our Dialog zul-file with parameters. So we can call
			 * them with a object of the selected item. For handed over these
			 * parameter only a Map is accepted. So we put the object in a
			 * HashMap.
			 */
			HashMap map = new HashMap();
			map.put("branche", branche);
			/*
			 * we can additionally handed over the listBox, so we have in the
			 * dialog access to the listbox Listmodel. This is fine for
			 * syncronizing the data in the customerListbox from the dialog when
			 * we do a delete, edit or insert a customer.
			 */
			map.put("lbBranch", listBoxBranch);
	-->   -->   --> map.put("branchCtrl", this);

                        // call the zul-file with the parameters packed in a map
			Window win = null;
			try {

				win = (Window) Executions.createComponents("/WEB-INF/pages/branch/branchDialog.zul", null, map);
			} catch (Exception e) {
				logger.error("onOpenWindow:: error opening window / " + e.getMessage());

				// Show a error box
				String msg = e.getMessage();
				String title = Labels.getLabel("message_Error");

				MultiLineMessageBox.doSetTemplate();
				MultiLineMessageBox.show(msg, title, MultiLineMessageBox.OK, "ERROR", true);

				if (win != null) {
					win.detach();
				}
			}

		}

	/**
	 * Before binding the data and calling the dialog window we check, if the
	 * zul-file is called with a parameter for a selected user object in a Map.
	 * 
	 * @param event
	 * @throws Exception
	 */
	public void onCreate$window_BranchesDialog(Event event) throws Exception {

		if (logger.isDebugEnabled()) {
			logger.debug("--> " + event.toString());
		}

		doOnCreateCommon(window_BranchesDialog, event); // autowire the vars

		/* set components visible dependent of the users rights */
		doCheckRights();

		// create the Button Controller. Disable not used buttons during working
		btnCtrl = new ButtonStatusCtrl(btnCtroller_ClassPrefix, btnNew, btnEdit, btnDelete, btnSave, btnClose);

		if (args.containsKey("branche")) {
			branche = (Branche) args.get("branche");
			setBranche(branche);
		} else {
			setBranche(null);
		}

		// we get the listBox Object for the branch list. So we have access
		// to it and can synchronize the shown data when we do insert, edit or
		// delete branches here.
		if (args.containsKey("lbBranch")) {
			lbBranch = (Listbox) args.get("lbBranch");
		} else {
			lbBranch = null;
		}

		if (args.containsKey("branchCtrl")) {
			branchCtrl = (BranchListCtrl) args.get("branchCtrl");
		} else {
			branchCtrl = null;
		}

		// set Field Properties
		doSetFieldProperties();

		doShowDialog(getBranche());

	}



	/**
	 * opens the dialog window in modal mode.
	 */
	public void doShowDialog(Branche branche) throws InterruptedException {

                ...

       	        try {
                 ...

			window_BranchesDialog.doModal(); // open the dialog in modal mode
		} catch (Exception e) {
			Messagebox.show(e.toString());
		}