Thanks for the detail.
Indeed it has the needed information.
-Manu.
Haykel BEN JEMIA wrote:
>
> I think there's a misunderstanding of the [Bindable] Metatag here.
> The Metatag only states that the compiler should create a property to
> which
> we can bind another one, which means it should dispatch a property change
> event every time it's value changes, but it doesn't bind it to anything.
>
> [Bindable] private var xyz:String = MyModel.getInstance().someVar;
> This means: create a bindable property xyz and initialize it with the
> value
> of MyModel.getInstance().someVar. No binding here!
>
> <mx:Label text="{xyz}"/>
> This means create a Label and bind its "text" property to "xyz" which
> means:
> everytime "xyz" changes, update "text" with its new value.
>
> <mx:Label text="{MyModel.getInstance().someVar}"/>
> This means create a Label and bind its "text" property
> to" MyModel.getInstance().someVar" which means: everytime
> "MyModel.getInstance().someVar" changes, update "text" with its new value.
>
> BUT with all these commands, you didn't create any binding between "xyz"
> and
> "MyModel.getInstance().someVar". They know nothing about each other
> besides
> the fact that "xyz" has been initialized with the VALUE of
> "MyModel.getInstance().someVar" during application initialization!
>
> Hope this helps!
>
>
> On Mon, Sep 22, 2008 at 5:26 AM, Manu Dhanda
> <[EMAIL PROTECTED]>wrote:
>
>>
>> Josh,
>>
>> Is it a right way to do the following:
>>
>>
>> [Bindable] private var xyz:String = MyModel.getInstance().someVar;
>>
>> Now, if I use xyz in my code then it is not updated. Where as if i use
>> 'MyModel.getInstance().someVar' then I am getting perfect result.
>>
>> For Ex:
>>
>> <mx:Label text="{xyz}"/> // view not updated with changes in model.
>> <mx:Label text="{MyModel.getInstance().someVar}"/> //view updated
>> everytime
>> with changes in model.
>>
>> So, I didn't get the difference between two above logically.
>>
>> Please explain the case as above. Thanks.
>>
>>
>> Josh McDonald-4 wrote:
>> >
>> > I get what you're saying, but you're coming at it from the wrong angle
>> is
>> > all.
>> >
>> > When you have this:
>> >
>> > [Bindable]
>> > public var myvar = someFunction();
>> >
>> > You're making it so that *other code* will be called when myvar
>> changes.
>> > You're also giving it the initial value of someFunction(). It won't
>> > "escape"
>> > back into the code for someFunction() and alter it so it becomes
>> bindable.
>> > We need to have a difference betwen "X = Y" and "create a binding from
>> X
>> > to
>> > Y", otherwise the entire virtual machine would slow to a crawl.
>> >
>> > If you want to create a binding from actionscript from
>> > "sourceObject.someValue" to "myValue" you do this:
>> >
>> > BindingUtils.bindProperty(this, "myValue", sourceObject, "someValue");
>> >
>> > Then whenever sourceObject tells the word that "someValue" has been
>> > updated
>> > (with events), Flex will set the "myValue" field on your object.
>> >
>> > -Josh
>> >
>> > On Mon, Sep 22, 2008 at 1:07 PM, Manu Dhanda
>> > <[EMAIL PROTECTED] <manuraj.dhanda%40gmail.com>>wrote:
>> >
>> >>
>> >> Hi Paul,
>> >>
>> >> if [Bindable] works just for initialization, then I think it is
>> loosing
>> >> it's
>> >> existence altogether.
>> >>
>> >> At least I think it this way.. that [Bindable] changes with every
>> change
>> >> that it is bind to. And not just it's initialization.
>> >>
>> >> Waiting for expert comments..
>> >>
>> >> Thanks,
>> >> Manu.
>> >>
>> >>
>> >> Paul Andrews-4 wrote:
>> >> >
>> >> > ----- Original Message -----
>> >> > From: "Manu Dhanda"
>> <[EMAIL PROTECTED]<manuraj.dhanda%40gmail.com>
>> >
>> >> > To: <[email protected] <flexcoders%40yahoogroups.com>>
>> >> > Sent: Monday, September 22, 2008 3:08 AM
>> >> > Subject: [flexcoders] [Bindable] is not getting updated..
>> >> >
>> >> >
>> >> >>
>> >> >> Hii Guyz,
>> >> >>
>> >> >> Although it's very strange (even for me), but this [Bindable] tag
>> is
>> >> not
>> >> >> working for me.
>> >> >>
>> >> >> I am following the cairngorm structure and storing a variable in
>> >> Model.
>> >> >>
>> >> >> Now, in one of my code file, if I 'll create a local bindable
>> >> variable,
>> >> >> that
>> >> >> binds to model.. then it is not being updated with the changes in
>> >> model.
>> >> >>
>> >> >> [Bindable] private var xyz:String = MyModel.getInstance().someVar;
>> >> >>
>> >> >> Now, if I use xyz in my code then it is not updated. Where as if i
>> use
>> >> >> 'MyModel.getInstance().someVar' then I am getting perfect result.
>> >> >>
>> >> >> Any thoughts here...
>> >> >
>> >> > Yes, some thoughts.
>> >> >
>> >> > [Bindable] private var xyz:String = MyModel.getInstance().someVar
>> >> >
>> >> > Means that xyz is bindable and is initialised with the value of
>> >> > MyModel.getInstance().someVar .
>> >> >
>> >> > It does not mean that xyz changes with the value of
>> >> > MyModel.getInstance().someVar .
>> >> >
>> >> > If you wish to have a binding in an mxml file to
>> >> > MyModel.getInstance().someVar then use
>> "{MyModel.getInstance().someVar
>> >> > }",
>> >> > alternatively in actionscript you'll have to specifically set up a
>> >> binding
>> >> > for it.
>> >> >
>> >> > Paul
>> >> >
>> >> >
>> >> >
>> >> >
>> >> >>
>> >> >> Regards,
>> >> >> Manu.
>> >> >> --
>> >> >> View this message in context:
>> >> >>
>> >>
>> http://www.nabble.com/-Bindable--is-not-getting-updated..-tp19600797p19600797.html
>> >> >> Sent from the FlexCoders mailing list archive at Nabble.com.
>> >> >>
>> >> >>
>> >> >> ------------------------------------
>> >> >>
>> >> >> --
>> >> >> Flexcoders Mailing List
>> >> >> FAQ:
>> http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt
>> >> >> Alternative FAQ location:
>> >> >>
>> >>
>> https://share.acrobat.com/adc/document.do?docid=942dbdc8-e469-446f-b4cf-1e62079f6847
>> >> >> Search Archives:
>> >> >> http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo!
>> Groups
>> >> >> Links
>> >> >>
>> >> >>
>> >> >>
>> >> >>
>> >> >
>> >> >
>> >> >
>> >>
>> >> --
>> >> View this message in context:
>> >>
>> http://www.nabble.com/-Bindable--is-not-getting-updated..-tp19600797p19601220.html
>> >> Sent from the FlexCoders mailing list archive at Nabble.com.
>> >>
>> >>
>> >> ------------------------------------
>> >>
>> >> --
>> >> Flexcoders Mailing List
>> >> FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt
>> >> Alternative FAQ location:
>> >>
>> https://share.acrobat.com/adc/document.do?docid=942dbdc8-e469-446f-b4cf-1e62079f6847
>> >> Search Archives:
>> >> http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo! Groups
>> >> Links
>> >>
>> >>
>> >>
>> >>
>> >
>> >
>> > --
>> > "Therefore, send not to know For whom the bell tolls. It tolls for
>> thee."
>> >
>> > http://flex.joshmcdonald.info/
>> >
>> > :: Josh 'G-Funk' McDonald
>> > :: 0437 221 380 :: [EMAIL PROTECTED] <josh%40gfunk007.com>
>> >
>> >
>>
>> --
>> View this message in context:
>> http://www.nabble.com/-Bindable--is-not-getting-updated..-tp19600797p19601339.html
>> Sent from the FlexCoders mailing list archive at Nabble.com.
>>
>>
>>
>
>
>
> --
> Haykel Ben Jemia
>
> Allmas
> Web & RIA Development
> http://www.allmas-tn.com
>
>
--
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