WebService and XMLListCollection

[Former Community Member]

I'm new to Flex and I'm having some trouble with getting a
DataGrid to populate from an XMLListCollection and WebService. I
know that the data is being received, because it shows up in a text
area. Also, when I change the XMLListCollection to an
ArrayCollection it works fine.



<?xml version="1.0"?>

<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute" verticalGap="10">

<mx:Script>

<![CDATA[

import mx.controls.Alert;

]]>

</mx:Script>



<mx:WebService id="wsBlogAggr"

wsdl="
http://weblogs.macromedia.com/mxna/webservices/mxna2.cfc?wsdl"

useProxy="false"

showBusyCursor="true"

result="Alert.show('Received', 'Received');"

fault="Alert.show(event.fault.faultString, 'Error');">

<mx:operation name="getMostPopularPosts"
resultFormat="e4x">

<mx:request>

<daysBack>30</daysBack>

<limit>5</limit>

</mx:request>

</mx:operation>

</mx:WebService>



<mx:XMLListCollection id="xc"
source="{wsBlogAggr.getMostPopularPosts.lastResult}"/>



<mx:DataGrid dataProvider="{xc}" width="50%"
horizontalCenter="12">

<mx:columns>

<mx:DataGridColumn dataField="postTitle" headerText="Top
Posts"/>

<mx:DataGridColumn headerText="Clicks" dataField="clicks"
width="75" />

</mx:columns>

</mx:DataGrid>



<mx:TextArea y="245" width="307" height="160"

id="ta"

text="{wsBlogAggr.getMostPopularPosts.lastResult}"
horizontalCenter="0"/>



<mx:Button label="Retrieve XML"
click="{wsBlogAggr.getMostPopularPosts.send()}" y="476"
horizontalCenter="0"/>



</mx:Application>



Sorry for the basic question, and thanks in advance.



Dan

[Bill_Sahlas]

You can go right from the WS result to the DataGrid when the
resultFormat is set to "object". Otherwise you should review this
document/sample for syntax and "caveats" -
http://livedocs.macromedia.com/flex/2/docs/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Pa...



Have you given the "object" resultFormat a test?



<?xml version="1.0"?>

<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute" verticalGap="10"
creationComplete="initializeApp();">

<mx:Script>

<![CDATA[

import mx.controls.Alert;

private function initializeApp():void

{

wsBlogAggr.getMostPopularPosts.send();

}

]]>

</mx:Script>



<mx:WebService id="wsBlogAggr"

wsdl="
http://weblogs.macromedia.com/mxna/webservices/mxna2.cfc?wsdl"

useProxy="false"

showBusyCursor="true"

fault="Alert.show(event.fault.faultString, 'Error');">

<mx:operation name="getMostPopularPosts"
resultFormat="object">

<mx:request>

<daysBack>30</daysBack>

<limit>5</limit>

</mx:request>

</mx:operation>

</mx:WebService>



<mx:DataGrid
dataProvider="{wsBlogAggr.getMostPopularPosts.lastResult}"

width="50%" horizontalCenter="12">

<mx:columns>

<mx:DataGridColumn dataField="postTitle" headerText="Top
Posts"/>

<mx:DataGridColumn headerText="Clicks" dataField="clicks"
width="75" />

</mx:columns>

</mx:DataGrid>



<mx:TextArea y="245" width="50%" height="50%"

id="ta"

text="{wsBlogAggr.getMostPopularPosts.lastResult}"
horizontalCenter="0"/>



</mx:Application>