Dynamically loading XML files using the HTTPService tag

How do I reload the data of the XMLListCollection?

<mx:HTTPService id="xml_httpservice_q1" url="q1.php?randomnumber=(randomnumber)" resultFormat="e4x"/>
<mx:XMLListCollection id="xml_result_q1" source="{xml_httpservice_q1.lastResult.resultaat}"/>

and on creationComplete: xml_httpservice_q1.send();

I get the XML data, no problem there.

when I perform xml_httpservice_q1.send(); a second time (I want to reload the data from the q1.php since it has changed), I receive the following error:

warning: unable to bind to property ‘resultaat’ on class ‘XML’ (class is not an IEventDispatcher)

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Hi Peterd, first of all i want to thank you for all your great tutorials and example files, you are a life saver!!!
I have modified this example of yours becouse i only want to load 1 gallery XML file.
But i am experiencing much errors.
I would like the TileList to load the “gallery1.xml”file automatic without the end-user clicking on the button.

I really tried everything i thought would fix this, but no success.

Thanks again, have a nice day.

————-
Miguel Torres

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<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
		layout="vertical"
		verticalAlign="middle"
		backgroundColor="white">

	<mx:Script>
		<![CDATA[
			import mx.rpc.events.ResultEvent;
			import mx.rpc.events.FaultEvent;
			import mx.controls.Alert;
			import mx.events.ListEvent;
			import mx.events.ItemClickEvent;
			import flash.net.URLRequest;

			private var alert:Alert;

			private function loadGallery(src:String):void {
				httpService.url = src;
				httpService.send();
			}

			private function httpService_fault(evt:FaultEvent):void {
				var title:String = evt.type + " (" + evt.fault.faultCode + ")";
				var text:String = evt.fault.faultString;
				alert = Alert.show(text, title);
				xmlListColl.removeAll();
			}

			private function httpService_result(evt:ResultEvent):void {
				var xmlList:XMLList = XML(evt.result).images.image;
				xmlListColl = new XMLListCollection(xmlList);
			}

			private function tileList_itemClick(evt:ListEvent):void {
            var link:URLRequest = new URLRequest(evt.itemRenderer.data.@url);
				navigateToURL(link);
			}
		]]>
	</mx:Script>

	<mx:XMLListCollection id="xmlListColl" />

	<mx:Button label="gallery 1" click="loadGallery('gallery1.xml');" />

	<mx:HTTPService id="httpService"
			resultFormat="e4x"
			fault="httpService_fault(event);"
			result="httpService_result(event)" />

	<mx:TileList id="tileList"
			dataProvider="{xmlListColl}"
			itemRenderer="TileListItemRenderer"
			columnCount="3"
			columnWidth="150"
			rowCount="2"
			rowHeight="100"
			itemClick="tileList_itemClick(event);"/>

</mx:Application>

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Hi,

I have found a method to automaticly load de XML file without pressing the button. I thought post it in here for anybody who has the same problem as I had.

I just added a creationComplete in the mx:Aplicaiton tag passing the “loadGallery (‘gallery1.xml’);”

This might NOT be best practice, but for now its the only way I know to make it work.

Again, thanks a lot for your great tuto´s and examples.

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Thanks for this! This was exactly what I needed to get my app working.

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<?php
// Name: makegallery.php (PHP 5.x)
// Who: Created by mallsop.com 10/18/2008
// What: Dynamically get all photos in a folder and make an xml file.
// Then name your gallery folder ‘mygallery’. Place this file there.
// Licence: GPL.
// How: Call this file instead of your xml file in your flex code.
function scanDirectory($dirid, $dirname) {

$return = “<”.”?xml version=\”1.0\” encoding=\”UTF-8\”?”.”>\n”;
$return .= “<galleries>\n”;
$return .= “<gallery id=\”$dirname\”>\n”;
$return .= “<description>$dirname</description>\n”;

while (($file = readdir($dirid)) != false) { // loop
if (($file != “.”) && ($file != “..”)) { // isa file
// get the file extension
$break = explode(“.”, $file);
$file_ext = $break[1];
$file_ext_lowercase = strtolower($file_ext);
if (($file_ext_lowercase == “gif”) OR ($file_ext_lowercase == “jpg”) OR ($file_ext_lowercase == “png”)) { // isa picture
// $filename = $dirname.$file;
$file_size = filesize($file);
// sizes
if ($file_size >= 1073741824) {
$file_size = round($file_size / 1073741824 * 100) / 100 . ” gb”;
}
elseif ($file_size >= 1048576) {
$file_size = round($file_size / 1048576 * 100) / 100 . ” mb”;
}
elseif ($file_size >= 1024) {
$file_size = round($file_size / 1024 * 100) / 100 . ” kb”;
}
else {
$file_size = $file_size . ” bytes”;
}

$return .= “<photo>\n”;
$return .= “<name>$file</name>\n”;
$return .= “<description>$file_size</description>\n”;
$return .= “<source>$dirname/$file</source>\n”;
$return .= “</photo>\n”;
} // end isa picture
} // end isa file to check
} // end loop

$return .= “</gallery>\n”;
$return .= “</galleries>\n”;

return ($return);
} //end function

// run script
$path = getcwd();
$dirname = basename($path); // “.”;
$dirid = opendir(“.”);
$results = scanDirectory($dirid, $dirname);
closedir($dirid);
// display the xml file on screen
echo $results;
// end of script
?>

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I got the same problem as Venkat

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Can you a tutorial on connecting a gallery to picasa or any web albums applications? your examples are really great.

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