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Select text in TextInput control

<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">   <mx:Script>            import mx.controls.Alert;       private function selectText():void       {         myInput.selectionBeginIndex = 0;         myInput.selectionEndIndex = myInput.text.length;         myInput.setFocus();       }             </mx:Script>   <mx:HBox>     <mx:Label text="Enter some text:"/>     <mx:TextInput id="myInput"/>     <mx:Button label="Select all text" click="selectText()"/>   </mx:HBox> </mx:Application>