uses event handlers to add and remove container children by calling addItem()/removeItemAt() on dataProvider property

          

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<!-- containers\spark\SparkDataGroupContainerAddRemoveChild.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">
    <s:layout>
        <s:VerticalLayout />
    </s:layout>
    <fx:Script>
         
        private function addDGChild():void { 
             var newChild:String = "new child"; 
             myDG.dataProvider.addItem(newChild); 
             addDG.enabled = false; 
             removeDG.enabled = true; 
        } 
        private function removeDGChild():void { 
             myDG.dataProvider.removeItemAt(3); 
             addDG.enabled = true; 
             removeDG.enabled = false; 
        } 
      
    </fx:Script>
    <s:DataGroup id="myDG"
        itemRenderer="spark.skins.spark.DefaultItemRenderer">
        <s:layout>
            <s:VerticalLayout />
        </s:layout>
        <mx:ArrayList>
            <fx:String>Dave Jones</fx:String>
            <fx:String>Mary Davis</fx:String>
            <fx:String>Debbie Cooper</fx:String>
        </mx:ArrayList>
    </s:DataGroup>
    <s:Button id="addDG" label="Add Child" click="addDGChild();" />
    <s:Button id="removeDG" label="Remove Child" enabled="false"
        click="removeDGChild();" />
</s:Application>

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uses event handlers to add and remove container children by calling addItem()/removeItemAt() on dataProvider property : dataProvider « Data Model « Flex

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