Link to xml from xml ( mx:Button click="function({...});" )

Question

links.xml contains links for page1, page2
links.xml
|
+-- page1.xml
|
+-- page2.xml
I try:
<mx:Button click="loadXML2({ getField( XML(
linksItems.currentItem ), how1Link ) });" label="Link" />
Debugger says:
Error: Repeater is not executing.
at mx.core::Repeater/get currentItem()
at LinkFromXML2/___LinkButton1_click()
<!-- File: links.xml -->
<?xml version="1.0" encoding="UTF-8"?>
<rdf:RDF xmlns="
http://web.resource.org/cc/"
xmlns:dc="
http://purl.org/dc/elements/1.1/"
xmlns:rdf="
http://www.w3.org/1999/02/22-rdf-syntax-ns#">
<item>
<dc:title>Page 1</dc:title>
<dc:link>page1.xml</dc:link>
</item>
<item>
<dc:title>Page 2</dc:title>
<dc:link>page2.xml</dc:link>
</item>
</rdf:RDF>
<!-- File: page1.xml -->
<?xml version="1.0" encoding="UTF-8"?>
<rdf:RDF xmlns="
http://web.resource.org/cc/"
xmlns:dc="
http://purl.org/dc/elements/1.1/"
xmlns:rdf="
http://www.w3.org/1999/02/22-rdf-syntax-ns#">
<dc:Work>
<dc:title>Page 1</dc:title>
</dc:Work>
</rdf:RDF>
<!-- File: page2.xml -->
<?xml version="1.0" encoding="UTF-8"?>
<rdf:RDF xmlns="
http://web.resource.org/cc/"
xmlns:dc="
http://purl.org/dc/elements/1.1/"
xmlns:rdf="
http://www.w3.org/1999/02/22-rdf-syntax-ns#">
<dc:Work>
<dc:title>Page 2</dc:title>
</dc:Work>
</rdf:RDF>
<!-- File: LinkFromXML.mxml -->
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute"
creationComplete="loadXML('links.xml');">
<mx:Script>
<![CDATA[
import mx.collections.XMLListCollection;
public var pathxml:String;
public var pathxml2:String;
private var how:Namespace = new Namespace("
http://web.resource.org/cc/");
private var dc:Namespace = new Namespace("
http://purl.org/dc/elements/1.1/");
[Bindable]
private var how1Title:QName = new QName(dc, "title");
[Bindable]
private var how1Link:QName = new QName(dc, "link");
[Bindable]
private var how2Title:QName = new QName(dc, "title");
[Bindable]
private var how1externalXML:XMLListCollection;
[Bindable]
private var how2externalXML:XMLListCollection;
private function loadXML(pathxml):void {
trace (pathxml);
var loader:URLLoader = new URLLoader();
var request:URLRequest = new URLRequest(pathxml);
loader.load(request);
loader.addEventListener(Event.COMPLETE, onComplete);
private function loadXML2(pathxml2):void {
var loader2:URLLoader = new URLLoader();
var request2:URLRequest = new URLRequest(pathxml2);
loader2.load(request2);
loader2.addEventListener(Event.COMPLETE, onComplete2);
private function onComplete(event:Event):void {
var loader:URLLoader = URLLoader(event.target);
var how1Items:QName = new QName(how, "item");
var dataXML:XML = XML( loader.data );
dataXML.addNamespace( dc );
var how1base:XMLList = dataXML.descendants( how1Items
how1externalXML = new XMLListCollection( how1base );
private function onComplete2(event:Event):void {
var loader2:URLLoader =
URLLoader(event.target);
var how2Items:QName = new QName(dc, "Work");
var dataXML:XML = XML( loader2.data );
dataXML.addNamespace( dc );
var how2base:XMLList = dataXML.descendants( how2Items
how2externalXML = new XMLListCollection( how2base );
private function getField( itemXML:XML,
field:QName):String {
return itemXML.descendants( field ).toString();
]]>
</mx:Script>
<mx:Canvas id="HowView" backgroundColor="#FFFFCC"
label="How"
width="100%" height="100%">
<mx:HBox width="100%" height="100%">
<mx:VDividedBox width="400" height="100%" id="how1Box"
backgroundColor="#B9C5A0">
<mx:Repeater width="80%" id="linksItems"
dataProvider="{ how1externalXML }">
<mx:VBox width="80%" horizontalAlign="center"
creationCompleteEffect="Fade">
<mx:LinkButton click="loadXML2('{getField( XML(
linksItems.currentItem ), how1Link )}')" label="{ getField( XML(
linksItems.currentItem ), how1Title) }" />
</mx:VBox>
</mx:Repeater>
</mx:VDividedBox>
<mx:VDividedBox width="100%" height="100%" id="how2Box"
backgroundColor="#6BA1A3">
<mx:Repeater width="100%" id="workItems"
dataProvider="{ how2externalXML }">
<mx:VBox width="534" horizontalAlign="center"
creationCompleteEffect="Fade">
<mx:Label text="{ getField( XML(
workItems.currentItem ), how2Title) }" color="#000000"/>
</mx:VBox>
</mx:Repeater>
</mx:VDividedBox>
</mx:HBox>
</mx:Canvas>
</mx:Application>

Answer 1

"Cole_62" <[email protected]> wrote in
message
news:gd2q5r$f08$[email protected]..
> no i dont think this will work because i need to iterate
through each
> <item> in
> the XML...below is an exmaple of possible tree structure
of the XML:
> channel
> -->item1
> ----->title
> ----->imgs
> --------->imgUrl
> --------->imgUrl
> -->item2
> ----->title
> ----->imgs
> ---------->imgUrl
> -->item3
> ------>title
> ------>imgs
> ----------->(no imgs)
>
> i thought to handle this using something like the
ATTACHED CODE below:
>
> ...i need to be able to go through each <item> and
<imgUrl> (because i
> dont
> know how many (if any) there are!) sorry if my PHP
background shines
> through!
>
> THANKS!
>
> <mx:Repeater id="feed"
dataProvider="{XML.channel.item}">
> <mx:HBox>
> <mx:Text text="{feed.currentItem.title}"/>
> <mx:Repeater id="item"
dataProvider="{feed.currentItem.imgs}">
> <!-- PSEUDO CODE I NEED HELP RESOLVING:
> if ("{item.currentItem.imgURL}")
> -->
> <mx:Image source="{item.currentItem.imgUrl}"/>
> </mx:Repeater>
> </mx:HBox>
> </mx:Repeater>
How bout
<mx:Repeater id="feed"
dataProvider="{XML.channel.item}">
<mx:HBox>
<mx:Text text="{feed.currentItem.title}"/>
<mx:Repeater id="item"
dataProvider="{feed.currentItem.imgs}">
<mx:Image
source="{item.currentItem.imgURL.length()>0?item.currentItem.imgURL:null}"
includeInLayout="{item.currentItem.imgURL.length()>0}"/>
</mx:Repeater>
</mx:HBox>
</mx:Repeater>