Single/Multi line in one Component in Flex 3

In Flex 3 TextInput component allows single line & TextArea allows multi line text input. Want to have an single component which will allow both., then use below code (component)

SingleMutiLineTextArea.as

package components

{
   import flash.events.Event;
   import flash.events.KeyboardEvent;
   import flash.events.TextEvent;
   import flash.ui.Keyboard;
   import mx.controls.TextArea;

   public class SingleMutiLineTextArea extends TextArea
   {
       public function SingleMutiLineTextArea()
       {
           super();
           this.addEventListener(TextEvent.TEXT_INPUT,onTextInput);
       }

       private var _multiLine:Boolean = false;

       public function set multiLine(value:Boolean):void
       {
          multiLine = value;
       }

       public function get multiLine():Boolean
       {
          return _multiLine;
       }

       private function onTextInput(event:TextEvent):void
      {
          if (!_multiLine  && (event.text.charCodeAt() == 10 ||   event.text.indexOf(String.fromCharCode(10))!=-1))
          {
             event.preventDefault();
          }
      }
  }
}

If the property 'multiLine' is set to 'true' it accepts multiline entering of text., if it is set to 'false' it wont allow.

Leave you comments below if found useful