Question

I’m following tutorial here

http://www.graphicsxone.com/checkbox-and-as3-in-flash-cs4.html

This is my code in main.as

package {

        import flash.display.Sprite;
        // import the CheckBox class
        import fl.controls.CheckBox;    
        mport flash.events.*;

    public class main extends Sprite {      

        addEventListener( Event.ADDED_TO_STAGE, init ); 

        // create the CheckBoxes
        var NS = new CheckBox();
        var SS = new CheckBox();
        var ES = new CheckBox();
        var WS = new CheckBox();

    }

  private function init( e:Event ):void
  {
    removeEventListener( Event.ADDED_TO_STAGE, init );
    response_txt.text = 'foo bar baz etc';
  } 

}

When I test it says

Access of undefined properties response_txt.

New picture http://img217.imageshack.us/i/responsetxt2.jpg/

Answer 1

You never instantiated response_txt.

var response_txt:TextField = new TextField();
response_txt.text = "blah blah blah";

That or you aren’t assigning the instance name properly in the flash IDE. I didn’t look at the tutorial much but – if your symbol is on the stage, just click on it and be sure to give it the right instance name…