Just FYI, My original approach worked and the total came out correct (internally anyways the for loop is being called I guess)!
thanks for the help anyways. --- In flexcoders@yahoogroups.com, "coder_flex" <[EMAIL PROTECTED]> wrote: > > Your answer involves looping externally (which is how they explain it > in the flex code sample). I was trying to avoid that and use e4x's > power to do the same. > Therefore I was calling a function within the e4x expression. I know > that calling a function within e4x expression works because I am doing > other conversions on attributes. I thought the summing up of > attributes should work too. > > Anyways, thanks for the quick response. > > > > --- In flexcoders@yahoogroups.com, "Matt Horn" <mhorn@> wrote: > > > > Here's a basic example using for each: > > > > <?xml version="1.0"?> > > <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml";> > > <mx:Script><![CDATA[ > > > > private var myXML:XML = > > <order> > > <item id='1' quantity='2'> > > <menuName>burger</menuName> > > <price>3.95</price> > > </item> > > <item id='2' quantity='1'> > > <menuName>fries</menuName> > > <price>1.45</price> > > </item> > > </order> > > > > private function sumTotal():void { > > var t:Number = 0; > > > > for each (var property:XML in myXML.item) { > > var q:int = [EMAIL PROTECTED]; > > var p:Number = property.price; > > var total:Number = q * p; > > t += total; > > } > > > > l1.text = "$" + t.toString(); > > } > > > > ]]></mx:Script> > > <mx:Label id="l1"/> > > <mx:Button id="b1" click="sumTotal()" label="Get Total"/> > > </mx:Application> > > > > hth, > > > > matt horn > > flex docs > > > > > -----Original Message----- > > > From: flexcoders@yahoogroups.com > > > [mailto:[EMAIL PROTECTED] On Behalf Of coder_flex > > > Sent: Thursday, June 22, 2006 10:49 PM > > > To: flexcoders@yahoogroups.com > > > Subject: [flexcoders] e4x adding attributes across members. > > > > > > If my xml structure looks like this: > > > > > > var inputXML:XML = > > > <books> > > > <book name="da vinci code" author="dan brown" price="12.22" > > > quantity="2"/> > > > <book name="angels and daemons" author="dan brown" price="10.20" > > > quantity="4"/> > > > <book name="digital fortress" author="dan brown" price="12.22" > > > quantity="5"/> > > > </books>; > > > > > > I wanted an e4x expression to get the total of price*quantity > > > across all the books. > > > > > > The way I am trying to achieve this is: > > > define a function: > > > public function addToTotal(totalObj:Object, > > > perBookTotal:Number):void { totalObj.totalAmt+=perBookTotal; } > > > > > > then call the function from e4x expression: > > > > > > var totalClass = new Object(); > > > totalClass.totalAmt = 0; > > > > > > inputXML.book.(addToTotal( > > > totalClass, Number(@price)*Number(@quantity))); > > > trace(totalClass.totalAmt); > > > > > > I am in the process of trying this. Is this going to work at > > > all? Or is there a better way of achieving this. > > > > > > Thanks in advance for all the help. > > > > > > > > > > > > > > > > > > ------------------------ Yahoo! Groups Sponsor --------------------~--> Great things are happening at Yahoo! Groups. See the new email design. http://us.click.yahoo.com/TISQkA/hOaOAA/yQLSAA/nhFolB/TM --------------------------------------------------------------------~-> -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
