Tree List Error

Question

I get the following error any time I click on a folder in my
tree list:
Error: Unable to load ''.
at mx.controls::SWFLoader/::loadContent()
at mx.controls::SWFLoader/load()
at
mx.controls::SWFLoader/mx.controls:SWFLoader::commitProperties()
at mx.core::UIComponent/validateProperties()
at mx.managers::LayoutManager/::validateProperties()
at mx.managers::LayoutManager/::doPhasedInstantiation()
at Function/
http://adobe.com/AS3/2006/builtin::apply()
at mx.core::UIComponent/::callLaterDispatcher2()
at mx.core::UIComponent/::callLaterDispatcher()
<b>Here's my code:</b>
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute" creationComplete="dirListSvc.send();">
<mx:Script>
<![CDATA[
import mx.controls.Alert;
import mx.rpc.events.FaultEvent;
import mx.rpc.events.ResultEvent;
import flash.net.FileReference;
private var fileRef:FileReference;
[Bindable]
private var dirList:XML;
[Bindable]
public var selectedNode:XML;
//file browse function
private function fileBrowse():void {
this.fileRef = new FileReference();
fileRef.addEventListener(Event.SELECT, selectHandler);
fileRef.browse();
private function selectHandler(event:Event):void {
var request:URLRequest = new URLRequest("
http://localhost:8300/");
fileRef.upload(request);
// Event handler for the Tree control change event.
public function treeChanged(event:Event):void {
selectedNode=Tree(event.target).selectedItem as XML;
private function
directoryResultHandler(event:ResultEvent):void {
dirList = event.result as XML;
// Fault handler - displays the error
private function
directoryFaultHandler(event:FaultEvent):void {
Alert.show(event.fault.message, "Could not load dirList");
]]>
</mx:Script>
<mx:HTTPService
id="dirListSvc"
url="
http://localhost/iqAssets/scripts/directory.php"
resultFormat="e4x"
result="directoryResultHandler(event);"
fault="directoryFaultHandler(event);"
/>
<mx:HDividedBox>
<mx:VBox>
<mx:Tree x="10" y="10" labelField="@label"
dataProvider="{dirList}" width="250"
change="treeChanged(event)"/>
<mx:Button label="Upload A File"
click="fileBrowse()"/>
</mx:VBox>
<mx:Panel height="300" width="400"
title="{selectedNode.@label}">
<mx:Text text="{selectedNode.@path}" />
<mx:Image source="{selectedNode.@path}" />
</mx:Panel>
</mx:HDividedBox>
</mx:Application>
And here's my php:
<?php
function getDirectory( $path = '.', $level = 0 ){
$ignore = array( 'cgi-bin', '.', '..' );
// Directories to ignore when listing output. Many hosts
// will deny PHP access to the cgi-bin.
$dh = @opendir( $path );
// Open the directory to the handle $dh
while( false !== ( $file = readdir( $dh ) ) ){
// Loop through the directory
if( !in_array( $file, $ignore ) ){
// Check that this file is not to be ignored
$spaces = str_repeat( ' ', ( $level * 4 ) );
// Just to add spacing to the list, to better
// show the directory tree.
if( is_dir( "$path/$file" ) ){
// Its a directory, so we need to keep reading down...
echo '<node label="'.$file.'">';
getDirectory( "$path/$file", ($level+1) );
// Re-call this same function but on a new directory.
// this is what makes function recursive.
echo '</node>';
} else {
$filename = strtolower($file) ;
$exts = split("[/\\.]", $filename) ;
$n = count($exts)-1;
$exts = $exts[$n];
$imageExt = array ('gif', 'jpg', 'swf', 'png');
if ( !in_array($exts, $imageExt))
echo '<node label="'.$file.'" path=""/>';
else
$imgPath = substr($path, 1);
echo '<node label="'.$file.'" path="'."
http://localhost/iqAssets/scripts$imgPath/$file".'"/>';
closedir( $dh );
// Close the directory handle
echo '<node label="assets">';
getDirectory( "." );
echo '</node>';
?>

Answer 1

For what it's worth, I have the exact same error message:
quote:
Error: Unable to load ''.
at mx.controls::SWFLoader/::loadContent()
at mx.controls::SWFLoader/load()
at
mx.controls::SWFLoader/mx.controls:SWFLoader::commitProperties()
at mx.core::UIComponent/validateProperties()
at mx.managers::LayoutManager/::validateProperties()
at mx.managers::LayoutManager/::doPhasedInstantiation()
at Function/
http://adobe.com/AS3/2006/builtin::apply()
at mx.core::UIComponent/::callLaterDispatcher2()
at mx.core::UIComponent/::callLaterDispatcher()
Here's my code:
quote:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
horizontalAlign="center" verticalAlign="middle"
creationComplete="photoService.send();" >
<mx:HTTPService
id="photoService"
url="data.xml"
resultFormat="e4x"
result="photoResultHandler(event);"
fault="photoFaultHandler(event);"
/>
<!-- Controller -->
<mx:Script>
<![CDATA[
import flash.net.navigateToURL;
import mx.controls.Alert;
import mx.rpc.events.FaultEvent;
import mx.rpc.events.ResultEvent;
[Bindable]
private var photoFeed:XML;
private function photoResultHandler(event:ResultEvent):void{
// Result handler - gets called after xml is loaded.
//Alert.show("Loaded xml!");
photoFeed = event.result as XML;
private function photoFaultHandler(event:FaultEvent):void{
// Fault handler - if the xml can't be loaded
Alert.show(event.fault.message, "Could not load photo xml");
]]>
</mx:Script>
<mx:Panel paddingTop="10" paddingBottom="10"
paddingLeft="10" paddingRight="10" title="phlex quick pic gallery
v0.8" fontWeight="bold" horizontalAlign="center" id="container">
<mx:Tile width="100%" height="100%">
<mx:Repeater id="photos"
dataProvider="{photoFeed.pic}">
<mx:VBox
xmlns:mx="
http://www.adobe.com/2006/mxml"
horizontalAlign="center"
>
<mx:Image
id="currentpic"
source="{photos.currentItem.attributes.url}"
/>
<mx:Text text="{photos.currentItem.attributes.title} by
{photos.currentItem.attributes.author}"/>
</mx:VBox>
</mx:Repeater>
</mx:Tile>
<mx:ControlBar id="nav" horizontalAlign="center"
verticalAlign="middle">
<mx:LinkButton label="previous" id="previous" />
<mx:Label text="3/18" fontWeight="normal" id="page" />
<mx:LinkButton label="next" id="next" />
</mx:ControlBar>
</mx:Panel>
</mx:Application>