Hi
I am working with flash and as3 to try and get a photo loader/viewer/upload tool built. I am using file reference to handle the browse/load/upload functions. My current stage has 2 loader boxes that i load the user selected image into. I need to be able to remove the image though and re-select another if the user decides.
So on the file loaded event i have this code:
// Load Image into Editor Function.
function onMovieClipLoaderComplete(event:Event):void {
var loadedContent:DisplayObject=event.target.content;
currentLoader =event.target.loader as Loader;
currentLoader.x=currentX;
currentLoader.y=currentY;
currentContent.buttonMode=true;
currentContent.addChild(currentLoader);
addChild(currentContent);
currentLoader.mask = currentMask;
addChild(replace_btn);
}
And on my replace button i have:
replace_btn.addEventListener(MouseEvent.CLICK, replaceImage);
function replaceImage(event:Event):void {
currentContent.removeChild(currentLoader);
removeChild(currentContent);
}
On pressing the replace button once it works fine but when i load another image into the loader - the next time i press the replace button (or any subsequent time) i get the following argument error in my flash as3 file:
ArgumentError: Error #2025: The supplied DisplayObject must be a child of the caller.
at flash.display::DisplayObjectContainer/removeChild()
at MethodInfo-13()
Does anyone know what this means? It’s odd that it only happens on the second time onwards not at first. I thought that if i have: [B]currentContent.addChild(currentLoader); addChild(currentContent);[/B] on load and then just [B]currentContent.removeChild(currentLoader); removeChild(currentContent);[/B] on the replace function it would work?
Full as3 code is shown below if that also helps
I have only been learning flash for 3-4 months so please go easy on me and i apologise if my code is not done in the best way! 
Lauren
// Imports.
import flash.events.MouseEvent;
import flash.net.FileReference;
import flash.net.FileFilter;
import flash.utils.ByteArray;
import flash.events.Event;
import flash.events.IOErrorEvent;
import flash.display.MovieClip;
// Set Start Up Values.
var image1_loader:Loader = new Loader();
var image1_content:Sprite = new Sprite();
var image1_mask:Sprite = new Sprite(); image1_mask.graphics.beginFill(0x000000,1); image1_mask.graphics.drawRect(54, 59, 330, 330); image1_mask.graphics.endFill();
var image2_loader:Loader = new Loader();
var image2_content:Sprite = new Sprite();
var image2_mask:Sprite = new Sprite(); image2_mask.graphics.beginFill(0x000000,1); image2_mask.graphics.drawRect(384, 59, 330, 165); image2_mask.graphics.endFill();
var currentBtn;
var currentLoader;
var currentContent;
var currentMask;
var currentX;
var currentY;
replace_btn.visible=false;
// Define FileReference.
var canvasImage:FileReference;
// Image Buttons Function.
image1_btn.addEventListener(MouseEvent.CLICK, start_fileRef);
image2_btn.addEventListener(MouseEvent.CLICK, start_fileRef);
image1_content.addEventListener(MouseEvent.MOUSE_DOWN, setCurrentSelection);
image2_content.addEventListener(MouseEvent.MOUSE_DOWN, setCurrentSelection);
function setCurrentSelection(e:MouseEvent):void {
if (e.currentTarget===image1_content){currentContent=image1_content;}
if (e.currentTarget===image2_content){currentContent=image2_content;}
}
// Browse File Function.
function start_fileRef(e:MouseEvent):void {
trace("onBrowse");
if (e.target===image1_btn){currentBtn=image1_btn; currentLoader=image1_loader; currentContent=image1_content; currentMask=image1_mask; currentX=54; currentY=59;}
if (e.target===image2_btn){currentBtn=image2_btn; currentLoader=image2_loader; currentContent=image2_content; currentMask=image2_mask; currentX=384; currentY=59;}
canvasImage=new FileReference();
canvasImage.addEventListener(Event.SELECT, onFileSelected);
var imageTypeFilter:FileFilter = new FileFilter("JPG/PNG Files","*.jpeg; *.jpg;*.gif;*.png");
canvasImage.browse([imageTypeFilter]);
}
// Selected File Function.
function onFileSelected(event:Event):void {
trace("onFileSelected");
canvasImage.addEventListener(Event.COMPLETE, onFileLoaded);
canvasImage.addEventListener(ProgressEvent.PROGRESS, onProgress);
var canvasImageName = canvasImage.name;
canvasImage.load();
}
// File Progress Function.
function onProgress(event:ProgressEvent):void {
var percentLoaded:Number=event.bytesLoaded/event.bytesTotal*100;
trace("loaded: "+percentLoaded+"%");
}
// File Loaded Function.
function onFileLoaded(event:Event):void {
var fileReference:FileReference=event.target as FileReference;
var data:ByteArray=fileReference["data"];
trace("File loaded");
var movieClipLoader:Loader=new Loader();
movieClipLoader.loadBytes(data);
movieClipLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, onMovieClipLoaderComplete);
canvasImage.removeEventListener(Event.COMPLETE, onFileLoaded);
}
// Load Image into Editor Function.
function onMovieClipLoaderComplete(event:Event):void {
var loadedContent:DisplayObject=event.target.content;
currentLoader =event.target.loader as Loader;
currentLoader.x=currentX;
currentLoader.y=currentY;
currentContent.buttonMode=true;
currentContent.addChild(currentLoader);
addChild(currentContent);
currentLoader.mask = currentMask;
addChild(replace_btn);
// Reveal Retry Button over Hover Function //
currentContent.addEventListener(MouseEvent.ROLL_OVER, hover);
replace_btn.addEventListener(MouseEvent.ROLL_OVER, hover);
currentContent.addEventListener(MouseEvent.ROLL_OUT, unhover);
replace_btn.addEventListener(MouseEvent.ROLL_OUT, unhover);
function hover(event:Event):void {
replace_btn.visible=true;
}
function unhover(event:Event):void {
replace_btn.visible=false;
}
replace_btn.addEventListener(MouseEvent.CLICK, replaceImage);
function replaceImage(event:Event):void {
currentContent.removeChild(currentLoader);
removeChild(currentContent);
}
}