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Get text indexes

Get text indexes
         
<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" width="600"
    height="500">
    <mx:Script>
        import mx.controls.textClasses.TextRange
        public function alterText():void {
            var tr1:TextRange = new TextRange(ta1, false,ta1.text.indexOf("is", 0), ta1.text.indexOf(".", 0));
            tr1.htmlText="<i>italic HTML text</i>"
            var tr2:TextRange = new TextRange(ta1, true, ta1.text.indexOf("t",0), ta1.text.length-1);
            ta1.setSelection(0, 3);
        }
      </mx:Script>
    <mx:TextArea id="ta1" fontSize="12" fontWeight="bold" width="100%"
        height="100">
        <mx:text>
            this is a test.
        </mx:text>
    </mx:TextArea>
    <mx:Button label="Alter Text" click="alterText();" />
</mx:Application>

   
    
    
    
    
    
    
    
    
  








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