Mega Code Archive
Uses event handlers to add and remove container children by calling addItem()removeItemAt() on dataProvider property
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Code from Flex 4 Documentation "Using Adobe Flex 4".
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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>
]]>