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Using the setItemIcon() method for Tree control

<?xml version="1.0"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">     <mx:Script>                  [Bindable]         [Embed(source="logo.jpg")]         public var iconSymbol1:Class;         [Bindable]         [Embed(source="logo.jpg")]         public var iconSymbol2:Class;         private function setIcons():void {             myTree.setItemIcon(myTree.dataProvider.getItemAt(0),iconSymbol1, iconSymbol2);             myTree.setItemIcon(myTree.dataProvider.getItemAt(1),iconSymbol2, null);         }            </mx:Script>     <mx:Tree id="myTree" labelField="@label" showRoot="false" width="160" initialize="setIcons();">         <mx:XMLList>             <node label="New">                 <node label="HTML Document" />                 <node label="Text Document" />             </node>             <node label="Close" />         </mx:XMLList>     </mx:Tree> </mx:Application>