Question

Actionscript 3.0/Flex 3 - Writing to an xml file

Asked by: jrwalker2

I have an object of type XML that is being updated constantly throughout my application. This XML was originally loaded from an external xml file. I would like to overwrite the initial xml file with the updated information on maybe a button click ("save" button). How can I accomplish this? What would the code look like? Thanks

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Asked On
2008-03-18 at 14:32:20ID23251889
Topics

Adobe Flex

,

Scripting Languages

,

WebApplications

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Points
500
Comments
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Answers

 

by: julianopolitoPosted on 2008-03-18 at 15:05:22ID: 21156412

Flex can't write to a local file. You should send this xml string to a php application for example, and have it write the file for you. You could also retrieve the file name from php and show a download box so the user can save a copy of it.
Below is an example of sending the xmlstring to server side script. it could be php, coldfusion, jsp, asp or anything.

<mx:Script>
	[Bindable]
	var yourXMLObject:XML;
	private function resultHandler(e:ResultEvent):void{
                  //here you receive a url string from php
		var fileURL:String = e.result as String;
	}
		]]>
	</mx:Script>
 
<mx:HTTPService id="service" url="yourPHP.php" 
    result="resultHandler(event)" resultFormat="text" >
	<mx:request xmlns="">
		<xmlString>
			{yourXMLObject.toXMLString()}
		</xmlString>
	</mx:request>
</mx:HTTPService>
<mx:Button label="Save XML" click="service.send()" />

                                              
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