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>
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