Question

Help needed with Event Listener and UIScrollBar

Asked by: BJenner2

I am working on an agreement form and need to determine when a user has scrolled to the bottom of the dynamic text. I put a tracer on .scrollPosition and have determined that 165 would be the value of the scrollPosition once it reaches the bottom. I have not however found an event listener that has triggered my check on .scrollPosition.

import fl.controls.UIScrollBar;
	
chkbox_mc._alpha = 0;
check_mc._alpha = 0;
chk_box_label.text = " ";
agree_btn_text.text = " ";
chk_confirm_btn_mc._alpha = 0;
 
	
myLoadVars = new LoadVars();
myLoadVars.onLoad = function() 
{
	agreeText.htmlText = myLoadVars.refText;
}
myLoadVars.load("agreeHTML.txt");
 
scroller.addEventListener(ScrollBar.getFocus, evokeAgreement);  //NOT WORKING
 
 
function evokeAgreement()
{
                     trace(scroller.scrollPosition); //NOT WORKING
	if(scroller.scrollPosition = scroller.maxScrollPosition)
	{
		chkbox_mc._alpha = 100;
		check_mc._alpha = 100;
		chk_box_label.text = "I agree to the terms of this agreement and contest that I am at least 21 years of age";
		agree_btn_text.text = "Cancel";
		chk_confirm_btn_mc._alpha = 100;	
	}
}

                                  
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Asked On
2009-09-26 at 17:21:26ID24764583
Tags

Flash

,

AS3

,

UIScrollBar

,

scrollPosition

Topics

ActionScript

,

Adobe Flash

Participating Experts
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Points
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Comments
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Answers

 

by: aneeshchopraPosted on 2009-09-26 at 23:38:57ID: 25432949

problems are:

1)
you are using wrong event, should use "scroll" event..

2)
"evokeAgreement" function should accept a parameter for eventListener object, you have not defined it.

3)
If statement inside "evokeAgreement" function should have "==" for, but you have written single "="

here is the updated code which will work fine:

import fl.controls.UIScrollBar;
	
chkbox_mc._alpha = 0;
check_mc._alpha = 0;
chk_box_label.text = " ";
agree_btn_text.text = " ";
chk_confirm_btn_mc._alpha = 0;
 
	
myLoadVars = new LoadVars();
myLoadVars.onLoad = function() 
{
	agreeText.htmlText = myLoadVars.refText;
}
myLoadVars.load("agreeHTML.txt");
 
scroller.addEventListener('scroll', evokeAgreement);  //NOT WORKING
 
 
function evokeAgreement(evt)
{
                     trace(scroller.scrollPosition); //NOT WORKING
	if(scroller.scrollPosition == scroller.maxScrollPosition)
	{
		chkbox_mc._alpha = 100;
		check_mc._alpha = 100;
		chk_box_label.text = "I agree to the terms of this agreement and contest that I am at least 21 years of age";
		agree_btn_text.text = "Cancel";
		chk_confirm_btn_mc._alpha = 100;	
	}
}
                                              
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by: BJenner2Posted on 2009-09-27 at 04:49:28ID: 31634026

Excellent. Thanks a big bunch. I had been working on this for days.

20120131-EE-VQP-002

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