Hi, Here is a small implemntation : There is a little problem : the event is distributed "before" the scroll, so, you can add a blank line to your texarea, and check if the scroll percentage is greater than 99% ;)
<?xml version="1.0" encoding="utf-8"?> <s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"; xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx" creationComplete="init(event)" height="768" width="1024"> <fx:Script> <![CDATA[ import mx.events.FlexEvent; import mx.events.PropertyChangeEvent; protected function handle(event:PropertyChangeEvent):void { _chx.selected = (_sc.scroller.verticalScrollBar.value == _sc.scroller.verticalScrollBar.maximum); } protected function init(event:FlexEvent):void { for (var i:Number=1; i<20 ;i++) { _sc.text += 'Alea Jacta Est\n'; } _sc.scroller.viewport.addEventListener(PropertyChangeEvent.PROPERTY_CHANGE, handle); } ]]> </fx:Script> <s:VGroup> <s:TextArea id="_sc" /> <s:CheckBox id="_chx" selected="false" /> </s:VGroup> </s:WindowedApplication> 2015-03-09 20:07 GMT+01:00 <[email protected]>: > I'm trying to implement a clickwrap agreement wherein a user must scroll > to the bottom of a spark TextArea or RichEditableText box in order to > enable a checkbox that must be selected to a Terms of Service (TOS) > contract. This ensures the TOS at least passed by the user's eyes before > agreeing to it (of course, we can never be sure the user actually read it). > > What can I use to determine that user has scrolled to the bottom of the > text area, so that I can enable the checkbox? Thanks for any comments. >
