[CLOSED] TreePanel Events.BeforeSelect - cancel

[takayser]

In TreePanel, if you try to select a row, cancel the BeforeSelect event, then the previous selected is no more selected (visual). See following example:

@Override
   public void onModuleLoad() {

      TreeStore store = new TreeStore();
      TreeModel model = new BaseTreeModel();
      model.set("name", "model a");
      store.add(model, false);
      model = new BaseTreeModel();
      model.set("name", "model b");
      store.add(model, false);

      TreePanel panel = new TreePanel<ModelData>(store);
      panel.setDisplayProperty("name");
      
      panel.getSelectionModel().select(model, false);
      
      panel.getSelectionModel().addListener(Events.BeforeSelect, new Listener<SelectionEvent<TreeModel>>() {
         @Override
         public void handleEvent(SelectionEvent<TreeModel> be) {
            be.setCancelled(true);
         }
      });

      RootPanel.get().add(panel);
   }

Win7, FF, GXT trunk

[sven]

This is not a bug. This is how it works at the moment. selecting an deselecting are two steps. If you dont want to keep selected items, than they are first cleared before selecting new ones. The beforeselect event gets fired for each model you are going to select.

We cannot change this in any GXT 2.X release as it would be a braking change.


We could add a BeforeDeselect and Deselect event, but the time left to the 2.2 release is probably too short.

[takayser]

Thanks for reply. Okay, BeforeDeselect and Deselect event would be a suffice anternative. (At least for my usecase.) Would be great if you could extend that to those events.

[takayser]

We could add a BeforeDeselect and Deselect event, but the time left to the 2.2 release is probably too short.

do you have this somewhere on a TODO List?

[sven]

Yes i have