What you are trying to do may be accomplished using custom events for data binding. Here's an example of what I think you are looking for:
<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"; layout="horizontal" > <mx:Script> <![CDATA[ private var _myBindableVar:Boolean=false; [Bindable] public function get myBindableVar():Boolean { return _myBindableVar; } public function set myBindableVar( val:Boolean ):void { if( val != _myBindableVar ) { _myBindableVar = val; dispatchEvent( new Event("bindableVarChanged") ); } } [Bindable("bindableVarChanged")] private function allowThis():Boolean { return myBindableVar == true; } ]]> </mx:Script> <mx:XMLListCollection id="dp"> <mx:source> <mx:XMLList xmlns=""> <item label="Menu" enabled="true" > <subitem label="Dynamic enabled state" enabled="{allowThis()}" /> <subitem label="Static enabled state" enabled="true" /> </item> </mx:XMLList> </mx:source> </mx:XMLListCollection> <mx:MenuBar dataProvider="{dp}" labelField="@label" /> <mx:Button id="button" toggle="true" click="myBindableVar =button.selected" /> </mx:Application> --- In flexcoders@yahoogroups.com, Mark Carter <[EMAIL PROTECTED]> wrote: > > > I have a MenuBar where the dataProvider is specified in MXML as an XMLList. > > For the "enabled" attributes I do something like: > > enabled="{allowThis()}" > > However, to get databinding working I end up passing in the relevant > bindable property and then ignore it within the implementation of allowMe(). > For example: > > enabled="{allowThat(myBindableVar)}" > > This works, but IMHO is horrible because it requires either messing up my > API or creating a load of functions like: > > function allowThat(myBindableVar:Object):Boolean { > allowThis(); > } > > Is there another approach? A standard approach? > > As another workaround, maybe there is a way to recalculate the enabled flags > for the whole MenuBar? Maybe resetting the dataProvider? > -- > View this message in context: http://www.nabble.com/Best-practice-for-databinding-with-MenuBar--tp2062\ 2610p20622610.html > Sent from the FlexCoders mailing list archive at Nabble.com. >
