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onChange Listener on "Number"

Posted on 2006-06-16
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Last Modified: 2006-11-18
Is it possible to create a listener on Number object and monitor the number onChange? Something like

var listener:Object = new Object();
listener.onChange = function():Void {
    trace("number changed");
}

var myNumber:Number = new Number();
myNumber.addListener(listener);

myNumber = 5; // this will fire the on change event and trace "number changed"
--------------------------------------------------------------
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Question by:Ameristar
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2 Comments
 
LVL 34

Accepted Solution

by:
Aneesh Chopra earned 1000 total points
ID: 16926254
Hi,

AddListener can only work for existing events

you have to use "watch" to achieve this..

here is the working sample code, open a new FLA and paste the following on first frame
-------------
var myNumber:Number = new Number();
//
valuedChanged = function (prop, oldVal, newVal)
{
      trace("number changed");
      trace("new Value is :"+newVal);
      return newVal;
};
//
this.watch("myNumber", valuedChanged);
//
myNumber = 10;
----------------

Rgds
Aneesh
0
 

Author Comment

by:Ameristar
ID: 16936250
superb! thnx much!
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