Deferred view state, and you cannot access it until after the first switch to the Deferred view state : State « Effects « Flex

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Deferred view state, and you cannot access it until after the first switch to the Deferred view state

          

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    <!-- states\StatesCreationPolicy.mxml -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
    xmlns:mx="library://ns.adobe.com/flex/mx" xmlns:s="library://ns.adobe.com/flex/spark"
    creationComplete="initButton();">
    <fx:Script> 
         
        // Because the Immediate view state creates the Button control 
        // at application startup, you can access the control to 
        // set the label before the first switch 
        // to the Immediate view state. 
        public function initButton():void { 
            newButtonImmediate.label="Immediate Button"; 
            // Uncommenting this line to access the label causes a 
            // Run Time Exception because newButtonDeferred does not exist yet. 
            // newButtonDeferred.label="Deferred Button"; 
        } 
      
    </fx:Script>
    <s:states>
        <s:State name="default" />
        <s:State name="Immediate" />
        <s:State name="Deferred" />
    </s:states>
    <s:Panel id="myPanel" title="Static and dynamic states" width="300"
        height="150">
        <s:layout>
            <s:VerticalLayout />
        </s:layout>
        <!-- Create the Button control at application startup. -->
        <s:Button id="newButtonImmediate" includeIn="Immediate"
            itemCreationPolicy="immediate" />
        <!-- Create the Button control when you switch to this view state. -->
        <s:Button id="newButtonDeferred" label="Deferred button"
            includeIn="Deferred" itemCreationPolicy="deferred" />
        <!-- Change to the Immediate view state. -->
        <s:Button label="Change to Immediate state" click="currentState='Immediate';" />
        <!-- Change to the Deferred view state. -->
        <s:Button label="Change to Deferred state" click="currentState='Deferred';" />
        <!-- Change to the default view state. -->
        <s:Button label="Change to default state" click="currentState='default';" />
    </s:Panel>
</s:Application>

   
    
    
    
    
    
    
    
    
    
  

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