RE: [SPAM] [flexcoders] cairngorm store example - newbie binding question

[Tracy Spratt]

The binding mechanism will cause any function to be called if one of its
arguments is bindable and changes.  I don't know the particular app, but I
suspect model.workflowState is bindable.

 

"Bindable" really only applies to properties, whether implemented as public
variables or as getter/setters.

 

Tracy Spratt,

Lariat Services, development services available

  _____  

From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On
Behalf Of normc_actionscript
Sent: Tuesday, November 24, 2009 8:59 PM
To: flexcoders@yahoogroups.com
Subject: [SPAM] [flexcoders] cairngorm store example - newbie binding
question

 

  

Greetings Flex pros:

In the modified cairngorm store (if you're familiar), file
ProductsAndCheckoutControlBar.mxml, there's:

<mx:Image
source="{ getProductThumbnailsButton( model.workflowState ) }" 

That function (getProductThumbnailsButton) is not marked as 'bindable' so
how does the binding happen?

The var model is the only thing marked as bindable in the file.

This is the function:
   public function getProductThumbnailsButton( enforceBining : Number ) :
Class
   {
    var model : ShopModelLocator = ShopModelLocator.getInstance();
    var result : Class = model.assets.thumbOff;
    
    if ( model.workflowState ==
ShopModelLocator.VIEWING_PRODUCTS_IN_THUMBNAILS )
    {
     result = model.assets.thumbOn;
    }
    
    return result;
   }