Create Components From Descriptors

           
<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" >
    <mx:Script>
      private function createComponents(recurseVal:Boolean):void {
          vbox1.createComponentsFromDescriptors(true);
      }
  </mx:Script>
    <mx:Panel>
        <mx:VBox id="vbox1" creationPolicy="none">
             <mx:DateField id="dateField1"/>
        </mx:VBox>
        <mx:Button label="Create components" click="createComponents(true)" />
    </mx:Panel>
</mx:Application>

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19.	Convert calculation result to String and set to Label
20.	Use this[control label] to reference controls declared
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23.	Log the component sizes to flashlog.txt
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Create Components From Descriptors : Spark component « Components « Flex

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