Insertion's effect on the Array and the ArrayCollection representation of the Array : Effect « Effects « Flex






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Insertion's effect on the Array and the ArrayCollection representation of the Array

Insertion's effect on the Array and the ArrayCollection representation of the Array
   
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<!-- dpcontrols\SimpleDP.mxml -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
    xmlns:s="library://ns.adobe.com/flex/spark"
    xmlns:mx="library://ns.adobe.com/flex/mx" width="600"
    initialize="sortAC();">
    <fx:Script>
         
        import mx.collections.*; 
        // Function to sort the ArrayCollection in descending order. 
        public function sortAC():void { 
            var sortA:Sort = new Sort(); 
            sortA.fields=[new SortField("label")]; 
            myAC.sort=sortA; 
            //Refresh the collection view to show the sort. 
            myAC.refresh(); 
        } 
        // Function to add an item in the ArrayCollection. 
        // Data added to the view is also added to the underlying Array. 
        // The ArrayCollection must be sorted for this to work. 
        public function addItemToMyAC():void { 
            myAC.addItem({label:"MD", data:"Annapolis"}); 
        } 
      
    </fx:Script>
    <fx:Declarations>
        <!-- An ArrayCollection with an array of objects -->
        <mx:ArrayCollection id="myAC">
            <!-- Use an fx:Array tag to associate an id with the array. -->
            <fx:Array id="myArray">
                <fx:Object label="MI" data="Lansing" />
                <fx:Object label="MO" data="Jefferson City" />
                <fx:Object label="MA" data="Boston" />
                <fx:Object label="MT" data="Helena" />
                <fx:Object label="ME" data="Augusta" />
                <fx:Object label="MS" data="Jackson" />
                <fx:Object label="MN" data="Saint Paul" />
            </fx:Array>
        </mx:ArrayCollection>
    </fx:Declarations>
    <s:HGroup width="100%">
        <!-- A ComboBox populated by the collection view of the Array. -->
        <s:ComboBox id="cb1" dataProvider="{myAC}" />
        <s:Button id="b1" label="Add MD" click="addItemToMyAC();" />
    </s:HGroup>
</s:Application>








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