RE: [flexcoders] Change Object Reference

[Alex Harui]

Is it just me?  References don't need "unlinking".  The original example
should just work.   Kevin, can you post your code so we can see what
you're trying to do?

 

________________________________

From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of Jurgen Beck
Sent: Sunday, June 03, 2007 11:16 AM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] Change Object Reference

 

Hey Kevin,

See if this makes sense in your configuration:

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml";
<http://www.adobe.com/2006/mxml>  
    creationComplete="initApp()"
    layout="vertical">

    <mx:Script>
        <![CDATA[
            
            private var obj1:Object = new Object();
            private var obj2:Object = new Object();
            [Bindable] private var objRef:Object = new Object();
            
            private function initApp():void {
                
                obj1.text = "test1";
                obj2.text = "test2";
                
                txtObject0.text = obj1.text;
                txtObject1.text = obj2.text;
                
                objRef = obj1;
                
            }
            
            private function switchObjects(event:Event):void {
                objRef = obj2; // testing reassigning of objects
                txtObject0.text = obj1.text;
                txtObject1.text = obj2.text;                
            }
            
        ]]>
    </mx:Script>
    
    <mx:Panel id="myPanel"     width="538" height="334"
layout="absolute">
        <mx:VBox width="100%" height="100%" x="10" y="10">
            <mx:Label text="VO Object"/>
            <mx:TextArea width="498" id="txtObject" borderStyle="solid"
text="{objRef.text}"/>
            <mx:Label text="someObject"/>
            <mx:TextArea width="498" id="txtObject0"
borderStyle="solid"/>
            <mx:Label text="someNewObject"/>
            <mx:TextArea width="498" id="txtObject1"
borderStyle="solid"/>
            <mx:Button     click="switchObjects(event)" label="Switch
Objects"/>
        </mx:VBox>
    </mx:Panel>
    
</mx:Application>

You'll see objRef taking on the new object values and leaving obj1 alone
when you switch object assignments.

Jurgen

Kevin wrote: 

        i couldn't get either of these solutions to work.  When I reset
the vo variable to nul (or new Object), it still modifies the object on
the model.  I could be doing something wrong, but for now, i decided to
instantiate an entirely new super class each time the vo changes.

         

        I'll look into this a little more and see if I can do what I
want...

         

        thanks, Kevin

         

         

         

         

        On Jun 3, 2007, at 9:33 AM, Jurgen Beck wrote:

        
        
        

        Rather than just assigning the model.someObject directly to the
vo object, you may first need to instantiate it with:
        
        var vo:Object = new Object();
        
        The assign the model.someObject to it:
        
        vo = model.someObject;
        
        When you then assign a different object to it, it should leave
model.someObject alone and just use the newly assigned object.
        
        Jurgen
        
        Kevin wrote:

                This may be a simple question, but it's stumping me.
                
                I have a component that contains a property (type
object) that holds 
                a reference to an VO on my model.
                
                How to I "unlink" that reference?
                
                For example, when I set the property:
                
                var vo : Object = model.someObject;
                
                I then do something like this:
                
                vo = someNewObject;
                
                This happens....
                model.someObject get's set to someNewObject...
                
                This is not what I want. Therefore, I assume I have to
"unlink" the 
                reference of vo to model.someObject, before I give it
another 
                reference. How do I do that?
                
                Thanks, Kevin