Hi Benoît,
I'm afraid I can't help you since I don't know too much about data
binding. But Martin, our data binding guru, will take a look at your
problem sometime this weekend, so please have a little patience.
Regards,
Daniel
benco schrieb:
> Hello,
>
> I'm a bit stuck and I really need some help here.
>
> I'm working on a Tree that can be loaded progressively on deploy and
> selection events. I also would like using the new binding features with that
> tree (namely the Tree Controller and the Json Store).
>
> The problem is I don't know how to manage the bindings correctly.
>
> In the first step (first launch), I bind the store with the tree controller.
> Then, the behaviour changes. The store should be binded to the tree
> controller "selection[0]". I really don't know how to do this in a simple
> way.
>
> If it's not possible ... never mind (I'll use the default tree behaviours
> and functions). But It would be useful and cool.
>
> Here's a code example:
>
> this.tree.controller = new qx.data.controller.Tree(null, this.browser.tree,
> "kids", "name");
>
> this.store = new qx.data.store.Json();
>
> this.tree.bindId = store.bind('model.tree',this.tree.controller,'model');
>
> this.store.addListener("loaded", function(ev)
> {
> // first loading
> if (this.tree.bindId)
> {
> this.store.removeBinding(this.tree.bindId);
> this.tree.bindId=null;
>
> var root = this.tree.getRoot();
> if (root)
> {
> this.tree.addToSelection(root);
> root.setOpen(true);
> }
> }
> else
> {
> this.store.bind('model.tree.kids',this.tree.controller,
> 'selection[0].kids')); // this would'nt work
> }
> }, this.browser);
>
> Furthermore, I'd like to know how I can complete/populate a partial zone of
> a model in the tree controller by new additional datas without resetting it
> completely... Any Ideas ?
>
> Thanks in advance,
>
> Best,
>
> Benoît.
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