How to add or remove one item from / to CellList?

Question

How to add / remove one item to / from CellList ?

Answer 1

If you use ListDataProvider<T> , get a wrapped list and just add or remove an item.

A really simple example:

 public void onModuleLoad() { final ListDataProvider<String> provider = new ListDataProvider<String>(getList()); CellList<String> list = new CellList<String>(new TextCell()); provider.addDataDisplay(list); Button btn = new Button("add more"); btn.addClickHandler(new ClickHandler() { private int counter = 0; @Override public void onClick(ClickEvent event) { provider.getList().add(++counter + " more"); } }); RootPanel.get().add(list); RootPanel.get().add(btn); } private LinkedList<String> getList() { LinkedList<String> list = new LinkedList<String>(); list.add("1st"); list.add("2nd"); list.add("3rd"); list.add("4th"); list.add("5th"); return list; }