It's not bad per se, depending on the use case. But, the navigator
containers only instantiate the first child, and then the other children
as needed (deferred instantiation); to cut down on the application load
time. If your TabNavigator only has two children, you're not going to
see much of a difference. And really, if you know that all of the forms
will be needed it's just a matter of preference; make the user wait at
the beginning or when a new child is needed. However, deferred
instantiation is beneficial, if there are children that may never be
needed.
-TH
--- In flexcoders@yahoogroups.com, "timgerr" <[EMAIL PROTECTED]> wrote:
>
> Thanks for the comment, if creationPolicy is bad, what do other people
> do and why is it bad?
>
> Thanks,
> timgerr
>
> --- In flexcoders@yahoogroups.com, "Tim Hoff" TimHoff@ wrote:
> >
> >
> > Hi Tim,
> >
> > The problem is that only the first child of a TabNavigator is
> > instantiated initially. Not best practice, but you can set
> > creationPolicy="All" for the TabNavigator; in order to reference the
> > other children on init.
> >
> > -TH
> >
> > --- In flexcoders@yahoogroups.com, "timgerr" <tgallagher@> wrote:
> > >
> > > Hello all, I have a TabNavigator that contains 2 forms:
> > > <mx:TabNavigator x="196" y="160" width="200" height="200"
id="TopTab">
> > > <mx:Form id="FormOne" label="User">
> > > <mx:FormItem label="First Name">
> > > <mx:TextInput id="fname"/>
> > > </mx:FormItem>
> > > <mx:FormItem label="Last Name">
> > > <mx:TextInput id="lname"/>
> > > </mx:FormItem>
> > > </mx:Form>
> > >
> > > <mx:Form id="FormTwo" label="Address">
> > > <mx:FormItem label="Address">
> > > <mx:TextInput id="address"/>
> > > </mx:FormItem>
> > > <mx:FormItem label="Zip Code">
> > > <mx:TextInput id="zip"/>
> > > </mx:FormItem>
> > > </mx:Form>
> > > </mx:TabNavigator>
> > >
> > > and I wrote this script to traverse a Form:
> > > public function Frm(f:Form):void
> > > {
> > > var a:Array = f.getChildren();
> > > for(var i:int = 0; i < a.length; i++){
> > > this.FrmI(a[i]);
> > > }
> > > }
> > >
> > > public function FrmI(f:FormItem):void
> > > {
> > > var a:Array = f.getChildren();
> > > for(var i:int = 0; i < a.length; i++){
> > > trace(a[i].id);
> > > }
> > > }
> > >
> > > so the script will take a form object, then see how many childreen
it
> > > has then it will send the formitems to FrmI. Frmi will get me the
name
> > > of the child objects and that is all. So the problem is when I run
> > init()
> > > public function init():void
> > > {
> > > Frm(FormOne);
> > > Frm(FormTwo);
> > > }
> > > I get this in return:
> > > fname
> > > lname
> > >
> > > If I just run the 2nd form like this:
> > > public function init():void
> > > {
> > > Frm(FormTwo);
> > > }
> > >
> > > Nothing is displayed. I think this has to do with TabNavigator. It
> > > looks to only get information from the tab that is on the top. Is
> > > that correct, and what do I have to do in order to get all the
> > > information ?
> > >
> > > Thanks,
> > > timgerr
> > >
> >
>
