Actionscript 3: How can I change the name property of content returned by Loader.load()? Error 1074

Question

I have a Scaleform movie that I want to serve as the container for my game's user interface. I want it to be able to load and unload other swf files that will serve as different HUDs and menus. And when I load a swf, I need Actionscript to register the name of the DisplayObject, so the game will know which "view" (i.e., HUD, pause menu, shop menu, etc.) just loaded.

I am able to load other swfs using Loader.load(), but for some reason I can't change their names. I keep getting error 1074.

[Edit: Adding more info on the error. "Error #1074: Illegal write to read-only property." Apparently I'm trying to write to a read-only property. So how do I make that property not-read-only? name isn't read-only in any other UIComponents I'm loading.]

    public function loadView(viewName:String, movieFileName:String):void
    {
        var loader:Loader = new Loader();
        var url:URLRequest = new URLRequest(movieFileName);
        loader.contentLoaderInfo.addEventListener(Event.COMPLETE, loaderComplete);
        loader.name = viewName;
        loader.load(url);
    }
    
    private function loaderComplete(e:Event):void
    {
        var loader:Loader = e.currentTarget.loader as Loader;
        var content:DisplayObject = LoaderInfo(e.target).content; // This returns the content I'm looking for, but I always get error 1074 if I try changing its name
        // var content:DisplayObject = loader.getChildAt(0); // This also returns the content I'm looking for, but it also gives me error 1074 if I try changing its name
        
        // content.name = loader.name; // This line always gives me error 1074
        
        // var newView:View = View(content); // Even if I try casting the content as a custom .as class...
        // newView.setName(loader.name); // public function setName(newName:String):void { this.name = newName; } // ...I still get error 1074
        
        addChild(content);
    }

Am I just not allowed to change the name property of swf movies that get returned? Can I set the name in the document class of the swf? I tried that too, but no matter where I change the name inside the document class (their class extends scaleform.clik.core.UIComponent, and I try setting the name in the constructor and in configUI), it always seems to get overwritten when I addChild().

[And another edit. Apparently there is some confusion over the "name" property. Here's how it works...]

I start off with this code. I just put it in frame 1 of my movie.

import TestUIComponent;
var testUIComponent:TestUIComponent = new TestUIComponent();
testUIComponent.name = "Something something";
trace("This is the testUIComponent's name: " + testUIComponent.name);
addChild(testUIComponent);

This is the class TestUIComponent:

package  {
    import scaleform.clik.core.UIComponent;
        
    public class TestUIComponent extends UIComponent {
        
        public function TestUIComponent() {
        }

        override protected function configUI():void {   
            super.configUI();
            enableInitCallback = true;
        }
    }
}

Nothing fancy there. It's just an Actionscript 3 scaleform.clik.core.UIComponent (need to specify that because I think there are at least 3 different UIComponents in different packages). enableInitCallback is a property that used to be visible in Flash's properties panel, but now in AS 3, it seems you can only change it in code.

So I run that code, and this is what I see:

This is the testUIComponent's name: Something something
CLIK Load: root.Something something

If I comment out the line

// testUIComponent.name = "Something something";

and then run the code, this is what I see:

This is the testUIComponent's name: instance1
CLIK Load: root.instance1

Going back to my original problem, the text that comes after "CLIK Load:" is the name that is getting sent from the UI to the game. I need that name to be something meaningful so the game knows what just got loaded. The swf files I am trying to load have Document Classes that are children of scaleform.clik.core.UIComponent, so I thought their name properties would work the same way as the TestUIComponent above. Apparently it doesn't. And as you can see all the way back up at the top, I even cast the loader.content as a View (which is a child of UIComponent), and I still can't change the name.

Answer 1

This is what I meant in the comments. Try something like this:

//... where you declare your variables, make them public to use in other functions...
public var myString = "";


//... later where you declare functions...
public function loadView(viewName:String, movieFileName:String):void
{
    var loader:Loader = new Loader();
    var url:URLRequest = new URLRequest(movieFileName);
    loader.contentLoaderInfo.addEventListener(Event.COMPLETE, loaderComplete);
    //loader.name = viewName;
    myString = viewName; //# 1) update String here to re-access in next function...
    loader.load(url);
}

private function loaderComplete(e:Event):void
{
    var content:DisplayObject = LoaderInfo(e.target).content; // This returns the content I'm looking for, but I always get error 1074 if I try changing its name
    
    // content.name = loader.name; // This line always gives me error 1074
    content.name = myString; //# 2) set content name to whatever myString holds (ie the viewName)...
    
    addChild(content);
}