Flash Pro Hyperlink button error

0
votes

I have created a button using flash Pro cc I've been doing research but was unable to find why a TypeError stating

TypeError: Error #1009: Cannot access a property or method of a null object reference.at PD3Subscribenow_fla::MainTimeline/frame1()

I have placed my code on a action layer on frame 1:

import flash.events.MouseEvent;
sub_btn.addEventListener(MouseEvent.CLICK, myButtonFunction);
function myButtonFunction(event: MouseEvent) {
var request:URLRequest = new URLRequest("http//:www.google.com");
navigateToURL(request, "_blank");
}

and gave the instance name of my button "sub_btn".

Can you tell me where I have gone wrong.

2
actionscript-3flashflash-cc
Most likely sub_btn is null. are you sure it's available on frame 1 with that instance name? – BadFeelingAboutThis
Only the actionscript on the first frame but the sub_btn is on another frame but would that class it as null – GaryM1981

2 Answers

0
votes

You issue is that on the frame where the code executes, sub_btn does not yet exist (as you state in your comments that it is on a later frame).

You either need to:

  1. Move the button to the first frame,

or

  1. Move the code that references it to the frame with the button.
-1
votes

The problem maybe that Flash does not recognize that your button exists yet. In Flash Builder I would use 

 creationComplete="init()"

and then 

 private function init():void{
    sub_btn.addEventListener(MouseEvent.CLICK, myButtonFunction)
 }