Listbox multiple and single selection separately

          <listbox model="@bind(vm.items)"
                   selectedItem="@bind(vm.selectedItem)" selectedItems="@bind(vm.selectedItems)" multiple="true"
                   checkedItem="@bind(vm.checkedItem)"   checkedItems="@bind(vm.checkedItems)"   multipleChecks="true">
          </listbox>

	private void createComponents(List<Email> list) {

. . .
		Listheader lh;
		Hbox hbox;
		Image img;

		lb = new Listbox();
		lb.setParent(plc);

		Listhead listhead = new Listhead();
		listhead.setParent(lb);

		// Delete marker Checkbox
		lh = new Listheader();
		lh.setWidth("55px");
		lh.setParent(listhead);
		hbox = new Hbox();
		hbox.setParent(lh);
		ckbDeleteAll = new Checkbox();
		ckbDeleteAll.setParent(hbox);
		ckbDeleteAll.setChecked(false);
		ckbDeleteAll.setStyle("padding-left: 2px; padding-right: 3px;");
		ckbDeleteAll.setTooltiptext(Labels.getLabel("common.MarkedAllForDeleting"));
		ckbDeleteAll.addEventListener("onCheck", new CheckAllListener());
		img = new Image();
		img.setSrc(IconHolder.ICON__TRASH_2_16x16);
		img.setParent(hbox);
 . . .

  . . .

			@Override
			public void render(Listitem item, Object data) throws Exception {

				Email obj = (Email) data;

				Listcell lc;
				Image img;
				Label lb;
				Checkbox cb;

				// Delete Checkbox
				lc = new Listcell();
				cb = new Checkbox();
				cb.setParent(lc);
				cb.setChecked(false);
				cb.setStyle("padding-left: 3px;");
				cb.setTooltiptext(Labels.getLabel("common.MarkedForDeleting"));

   . . .



	/**
	 * Inner Listener class.<br>
	 * onCheck for the 'mark all for deleting' Checkbox.
	 * 
	 * @author Stephan Gerth
	 */
	private final class CheckAllListener implements SerializableEventListener {
		private static final long serialVersionUID = 1L;

		@Override
		public void onEvent(Event event) throws Exception {

			Checkbox ckb = (Checkbox) event.getTarget();

			if (ckb.isChecked())
				checkAllItems(true);
			else
				checkAllItems(false);
		}
	}

	/**
	 * EN: Checks/unchecks all items as marked for deleting.<br>
	 * DE: Checked/unChecked alle Datensetze als zum loeschen markiert.<br>
	 */
	@SuppressWarnings("unchecked")
	public void checkAllItems(boolean checkAll) {

		List<Listitem> list = listbox.getItems();

		if (list.size() > 0) {
			for (Listitem li : list) {
				if (li.getFirstChild().getFirstChild() instanceof Checkbox) {
					Checkbox cb = (Checkbox) li.getFirstChild().getFirstChild();
					cb.setChecked(checkAll);
				}
			}
		}
	}

	/**
	 * EN: Deletes the object link records which checkbox is marked for delete.<br>
	 * DE: Loescht alle zum loeschen markierten Datensaetze.<br>
	 */
	@SuppressWarnings("unchecked")
	public void deleteMarkedItems() {

		List<Listitem> list = lb.getItems();

		if (list.size() > 0) {

			for (Listitem li : list) {
				if (li.getFirstChild().getFirstChild() instanceof Checkbox) {
					Checkbox cb = (Checkbox) li.getFirstChild().getFirstChild();
					if (cb.isChecked()) {
						Email entity = (Email) li.getValue();

						long id = entity.getId();

						MiscObjectLink obj;
						obj = getMyDBService().getMyOject(  id );

						/**
						 * delete the object
						 */
						if (obj != null) {
							getMyDBService().delete(obj);
					}
				}
			}
		}
	}