I haven’t tested it, but this seems to be the solution, see:
http://www.justskins.com/forums/dynamic-access-to-as-properties-reflection-16508.html
Cheers!
Martin Zach

did you try this:

public class MyClass
{
import …

public var myInt:int=new int;

public function MyClass() // Same name as Class!!!
{
//super(); // calls a constructur of super class if any
this.myInt=myInt;
init();
}

public function init():void{
}

You can call the Constructor like this:
MyClass(500);

similar sutuation with a property:
I know only the propertyName as a String.
Is there a way to access the property at runtime?

Cheers!

Martin Zach

first of all thanks for this very good site!

To get the QualifiedClassName try this:

import flash.utils.getQualifiedClassName;

getQualifiedClassName(dg.columns[0].itemEditor.generator)

if the item editor was a textArea this is what would be returned – mx.controls::TextArea

Cheers!

Martin Zach
P.S: i got the solution from David, see
http://forums.adobe.com/message/2336185#2336185

public var _arg0
public var _arg1
constructor( arg0 = null, arg1 = null ){
if(arg0) this.arg0 = arg0
if(arg1) this.arg1 = arg1
if(argsComplete()) instantiate()
}

public function instattiate(){
// instantiate
}

public function set arg0(v:*){
this._arg0 = v;
if(argsComplete()) instantiate()
}

public function set arg1(v:*){
this._arg1 = v;
if(argsComplete()) instantiate()
}

public function argsComplete():Boolean{
if(_arg0 && _arg1) return true els return false
}

How do you also pass a variable list of parameters to the constructor of such a dynamic object?

Case in question: I want to instantiate a set of objects defined by an XML received from the server & add them to my scene. Some objects have no arguments for the constructor, but some do. The XML can easily pass in the required arguments as needed. But how do I dynamically pass these arguments to the constructor (as in an array). Such as can done with the myFunction.call(this, argsArray) method?

Something like this is what I need:
var mc=new (getDefinitionByName(str) as Class).call(thisNewThing, argsArray)

Any ideas?