Binding will not work with dynamic objects, which it sounds like you're
using. I have a feeling your invisible text field trick is only working when
you switch selectedItem. Seems like if you kept the same item selected and
the TYPE property changed on that item, the binding would not fire, but
since selectedItem was in your MXML binding chain, a binding will fire
anytime you select a different item in the list, then it will pull out the
TYPE property and update your text field.
If you don't really need binding and just need to update when a selection
changes, you could always listen for the itemClicked property or add a
ChangeWatcher for the list.selectedItem property and call a function that
pulls out the TYPE property and updates your currentOp object.
On Tue, Apr 15, 2008 at 8:55 AM, Dominic Pazula <[EMAIL PROTECTED]> wrote:
> I have a List Component whose dataProvider is an ArrayCollection of
> generic objects.
>
> I have another object I would like to bind a property of to a
> property to the selectedItem of the List.
>
> I have:
> BindingUtils.bindProperty
> (currentOp,"type",this.columnList.selectedItem,"TYPE");
>
> No go... I see that the binding util cannot work with the property
> TYPE on the generic object, does not implement IEventDispatcher,
> etc. I get why it doesn't work.
>
> So if I add
> <mx:Text id="selectedType" text="{this.columnList.selectedItem.TYPE}"
> visable="false"/>
>
> and
> BindingUtils.bindProperty(currentOp,"type",this.selectedType,"text");
>
> it works.
>
> I would prefer NOT to have a bunch of invisible text fields running
> around. How can I accomplish this in AS?
>
> Thanks
> Dom
>
>
>
