Hello Dave,
thank you ver much for the compliments. :)
Thats something we are aware of. You can bind the selection instead.
See the code here as an example:
// create the select box
selectBox = new qx.ui.form.SelectBox();
selectBox.add(new qx.ui.form.ListItem("a"));
selectBox.add(new qx.ui.form.ListItem("b"));
selectBox.add(new qx.ui.form.ListItem("c"));
selectBox.add(new qx.ui.form.ListItem("d"));
this.getRoot().add(selectBox);
// create the model
var data = {sel: ""};
model = qx.data.marshal.Json.createModel(data);
// selectBox to model
selectBox.bind("selection", model, "sel", {
converter : function(data) {
return data[0].getLabel()
}
});
// model to selectBox
model.bind("sel", selectBox, "selection", {
converter : function(data) {
var selectables = selectBox.getSelectables();
for (var i = 0; i < selectables.length; i++) {
var item = selectables[i];
if (item.getLabel() == data) {
return [item];
}
}
return null;
}
});
Does that help?
Regards,
Martin
Am 24.07.2009 um 17:39 schrieb dmbaggett:
>
> I've been doing a lot with Martin's data binding framework in 0.8.3-
> pre.
> Truly amazing stuff! Very, very nice work, Martin.
>
> One thing I've noticed, however, is that as of 0.8.3-pre, the "value"
> property of SelectBox and List are deprecated. Looking at the code,
> I can
> see why this is -- the goal there is to standardize on the single
> selection
> mixin -- but for binding we need a property to bind to.
>
> It works right now to bind to the "value" property, but you get
> warnings
> about the property being deprecated. Could those warnings be
> removed? And,
> in general, there are probably going to be other cases like this,
> where
> you'd like to establish a bidirectional binding but cannot, because
> the
> object in question lacks an appropriate property. It's almost like
> we need a
> way to bind to either a property, event, *or* some arbitrary piece
> of code
> that knows how to get/set/reset a (fake or hidden) property of the
> target
> object.
>
> (It may be possible to do this already with delegation, but I must
> confess I
> don't fully understand that part of the code yet.)
>
> Dave
>
> --
> View this message in context:
> http://www.nabble.com/Data-Binding-to-SelectBox-and-List-tp24646821p24646821.html
> Sent from the qooxdoo-devel mailing list archive at Nabble.com.
>
>
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