Thanks for that Tracy - interesting approach and could be exactly what I
need.
I use fairly strict naming standards:
<menuitem id="firstAction" label="First Action"
enabled="{allowFirstAction()}"/>
So, if I use your approach, then I would remove the enabled attribute and,
instead, in actionscript do something like:
menuItemsXML..menuitem.(@id == firstAction)[EMAIL PROTECTED] =
allowFirstAction();
As you can imagine, I have lots of these enabled attributes to set.
How can I call the allowX() function where X is a string stored in a var?
So I can do something like this to call all allowX() methods:
for each (var menuitem:XML in menuitemsXML..menuitem) {
var id:String = [EMAIL PROTECTED];
var allowFunc:Function = <!-- something like getFunction("allow" +
id.substring(0, 1).toUpperCase() + id.substring(1)) -->
[EMAIL PROTECTED] = allowFunc();
}
That would be really powerful.
Tracy Spratt wrote:
>
> I do not use binding to change dataProvider property values. Rather, I
> use an e4x expression to locate the desired node(s), then directly set
> the property values I want.
>
> Tracy
>
>
>
> ________________________________
>
> From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
> Behalf Of Mark Carter
> Sent: Friday, November 21, 2008 9:51 AM
> To: flexcoders@yahoogroups.com
> Subject: [flexcoders] Best practice for databinding with MenuBar?
>
>
>
>
> 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
> <http://www.nabble.com/Best-practice-for-databinding-with-MenuBar--tp206
> 22610p20622610.html>
> Sent from the FlexCoders mailing list archive at Nabble.com.
>
>
>
>
>
--
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