When I read this
http://livedocs.adobe.com/flex/3/html/help.html?content=layoutperformance_06.html
I thought the "childDescriptors" method is independent from the life cycle, it
would let me introspect the component without adding to display. What did I
miss ? How do I introspect a component before displayed.
--- In flexcoders@yahoogroups.com, Wesley Acheson <wesley.ache...@...> wrote:
>
> It may be because of deferred instantiation the component doesn't actually
> have children yet.
>
> On Fri, Aug 21, 2009 at 10:29 PM, alexeoscar <alexeos...@...> wrote:
>
> > Suppose you have a MyView.mxml file, which is basically a Panel with
> > several children (Form, FormItems, Buttons...).
> >
> > Is it possible to iterate over the MyView and get all the information about
> > its children (types, id ...) before it is displayed.
> >
> > In my Main.mxml if I have this function
> >
> > public function iterateOverChildren(comp:Container):void {
> > // Get the number of descriptors.
> > trace("Running iterateOverChildren for " + comp.id);
> > if (comp != null)
> > {
> > var n:int = comp.childDescriptors.length;
> > for (var i:int = 0; i < n; i++) {
> > var c:ComponentDescriptor = comp.childDescriptors[i];
> > var d:Object = c.properties;
> >
> > // Log ids and types of objects in the Array.
> > trace(c.id + " is of type " + c.type);
> >
> > // Log the properties added in the MXML tag of the object.
> > for (var p:String in d) {
> > trace("Property: " + p + " : " + d[p]);
> > }
> > }
> > }
> > }
> >
> >
> > Why does this call not work ?
> >
> > var myV = MyView();
> > iterateOverChildren(myV);
> >
> > It only works if I add a statement like
> > addChild(myV);
> > before the iterateOverChildren call. (But that's not what I want, I want to
> > iterate the descriptions without adding it to display).
> >
> > -alex
> >
> >
> >
> >
> >
> >
> >
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