thanks for the input Gordon,
When i think of creating mxml components, i'm thinking
lazy/convenience programming.
i want all the component and its children to be created. I can give
the children some default values which i can then change after
the 'new', if i wish
eg My PrintView.mxml
<mx:VBox backgroundColor='yellow'>
<mx:Label id='contact' text='batman'/>
<mx:PrintDataGrid id="printDG"/>
</mx:VBox>
in code -
var printView:MyPrintView = new PrintView();
// change what i like
printView.contact.text = 'spiderman';
etc.
i thought the generated AS class would look like this
class MyPrintView extends VBox
{
public contact:Label;
public printDG:PrintDataGrid
public MyPrintView()
{
super();
contact = new Label();
contact.text = 'batman'
addChild(contact)
//etc
}
}
--- In flexcoders@yahoogroups.com, "Gordon Smith" <[EMAIL PROTECTED]> wrote:
>
> > when i create an instance of MyPrintView, its children are not
> created. why is that?
> > if you addChild() to the Application....they are created. why is
that?
>
> The reason that components do not create their children immediately
when
> they are created is so that you can set properties after
calling 'new'
> and have these properties affect which children get created. For
> example,
>
> var clock:Clock = new Clock();
> clock.mode = "analog";
> addChild(clock);
>
> The Clock would need completely different children if the mode were
> "digital" instead of "analog". By delaying the creation of the
children
> until addChild(), the framework makes it possible to optimize which
> children are created.
>
> - Gordon
>
> ________________________________
>
> From: flexcoders@yahoogroups.com
[mailto:[EMAIL PROTECTED] On
> Behalf Of bhaq1972
> Sent: Monday, April 30, 2007 4:57 AM
> To: flexcoders@yahoogroups.com
> Subject: [flexcoders] creating instances, addChild question
>
>
>
> This question is very similar to a question someone else is asking
> (may even be the same thing????)
>
> I've got a component called MyPrintView.mxml
>
> <mx:VBox>
> <mx:Label id="contact"/>
> <mx:PrintDataGrid id="printDG"/>
> </mx:VBox>
>
> when i create an instance of MyPrintView, its children are not
> created. why is that?
>
> if you addChild() to the Application....they are created. why is
> that?
>
> <?xml version="1.0" encoding="utf-8"?>
> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml
> <http://www.adobe.com/2006/mxml> "
> initialize="startUP()">
>
> <mx:Script>
> <![CDATA[
> private function startUP():void
> {
> var printView:MyPrintView = new MyPrintView();
> trace(printView);
> trace(printView.printDG, printView.contact); //both null
> addChild(printView);
> trace(printView.printDG, printView.contact); //both not null
>
> }
> ]]>
> </mx:Script>
> </mx:Application>
>
