Perhaps you could create a classFactory and set the property on that dynamically, then use the classFactory's newInstance method to get your instance.

~ Jeff

On 9/26/13 6:01 PM, mark goldin wrote:
That is not exactly what I have. Yes, I too have an mxml class based on
another AS class. But I am creating an instance of my mxml class like this:
var newMyClass:MyClass = new MyClass();
So, how can I pass a value for myProperty to newMyClass? My understanding
as soon as var newMyClass:MyClass = new MyClass(); executes all children on
newMyClass will be created but I need to have myProperty before that.


On Thu, Sep 26, 2013 at 7:17 PM, Mark Kessler
<[email protected]>wrote:

Let me make the example a little more neutral.


class being called.

     public class MyClass inherits UIComponent
     {
         /**
         *  Constructor.
         */
         public function MyClass ():void
         {
             super();
         }

         //----------------------------------------
         //  My setup property
         //----------------------------------------
         protected _myProperty:Object;

         public function get myProperty():Object
         {
             return
         }

         public function set myProperty(value:Object):void
         {
             if (_myProperty == value)
             {
                 return;
             }

             _myProperty = value;

             setupChildren();
         }

         protected function setupChildren():void
         {
             //using the _myProperty to setup the children and marking
anything as being ready and available... events n such.
         }
     }


mxml side

<ns:MyClass myProperty="The property i'm passing to initialize" />




-Mark



On Thu, Sep 26, 2013 at 3:18 PM, mark goldin <[email protected]>
wrote:

Are you saying I have to involve the DI framework?


On Thu, Sep 26, 2013 at 2:13 PM, Kessler CTR Mark J <
[email protected]> wrote:

Setter Dependency Injection(mxml compatible) vs constructor Dependency
Injection (AS compatible).

-Mark

-----Original Message-----
From: mark goldin [mailto:[email protected]]
Sent: Thursday, September 26, 2013 2:57 PM
To: users
Subject: Send parameter to mxml constructor

I have an mxml class called Obj1. Somewhere in my code I do:
var _obj1 = new Obj1();

What I need is to provide some variable to Obj1 for its
initialization. A
reason for that is because Obj1 has children that need that variable
for
their initialization.
But because I cannot send a parameter to Obj1's constructor I dont know
how
to solve my problem.
Any idea?

Thanks


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