Sort DataGrid with dataprovider XMLisCollection

Question

I can't get my datagrid to sort when I have a
XMLListcollection as the dataprovider and I have to use a
labelfunction to get the records to display because of the
namespace in the XML (Replicating a .NET web service).
Can someone help, Please?
I have the following code:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="vertical" creationComplete="initApp()" >
<mx:Script>
<![CDATA[
import mx.controls.dataGridClasses.DataGridColumn;
import mx.controls.DataGrid;
import mx.events.DataGridEvent;
import mx.collections.*;
import mx.controls.Alert;
import mx.formatters.DateFormatter;
//the dataProvider for the DG
[Bindable]
private var _xlc:XMLListCollection;
[Bindable]
private var sortA:Sort;
// The sort fields used to determine the sort.
private var sortBySeverity:SortField;
private var sortByRequestor:SortField;
public function initApp():void
namespace myNameS = "myNamespace.Test";
use namespace myNameS;
_xlc = new
XMLListCollection(GetRequestList.*..SafRequestListVO);
//testing element values
trace(GetRequestList.*..SafRequestListVO.SeverityLevel);
sortA = new Sort();
sortBySeverity = new SortField("SeverityLevel", true, true);
sortByRequestor = new SortField("Requestor", true);
sortA.fields=[sortBySeverity, sortByRequestor];
_xlc.sort=sortA;
_xlc.refresh();
dg.dataProvider = _xlc;
dg.rowCount=_xlc.length +1;
/**labelFunction to return data to DG by reference of
dataField*/
private function LF(item:Object,
column:DataGridColumn):Object
namespace myNameS = "myNamespace.Test";
use namespace myNameS;
var colDataField:Object = column.dataField;
switch (colDataField) //logic to determine which node to get
the data from
case "SAFNumber":
return item.SAFNumber;
break;
case "RequestDate":
var date:String = new String(item.RequestDate).toString();
var df:DateFormatter = new DateFormatter();
df.formatString = "YYYY-MM-DD";
return df.format(date);
break;
case "SeverityLevel":
return item.SeverityLevel;
break;
case "Requestor":
return item.Requestor;
break;
case "IssuedToDepartment":
return item.IssuedToDepartment;
break;
default:
return item.dataField;
break;
]]></mx:Script>
<mx:Canvas id="datagridParent" borderStyle="solid"
height="450" width="100%" >
<mx:DataGrid id="dg" width="100%" height="100%"
rowCount="5" labelFunction="LF">
<mx:columns>
<mx:DataGridColumn dataField="SAFNumber"
headerText="SAFNumber"/>
<mx:DataGridColumn dataField="Requestor"
headerText="Requestor"/>
<mx:DataGridColumn dataField="RequestDate"
headerText="RequestDate"/>
<mx:DataGridColumn dataField="IssuedToDepartment"
headerText="IssuedToDepartment"/>
<mx:DataGridColumn dataField="SeverityLevel"
headerText="SeverityLevel"/>
</mx:columns>
</mx:DataGrid>
</mx:Canvas>
<mx:XML id="GetRequestList" format="e4x">
<GetRequestListResponse xmlns="myNamespace.Test">
<GetRequestListResult>
<SafRequestListVO>
<RequestGuid>3F2504E0-4F89-11D3-9A0C-0305E82C3301</RequestGuid>
<SAFNumber>1</SAFNumber>
<RequestDate>03/24/2007</RequestDate>
<Requestor>Michael</Requestor>
<IssuedToDepartment>1</IssuedToDepartment>
<IssuedToArea>3</IssuedToArea>
<IssuedByDepartment>string</IssuedByDepartment>
<Problem>Problem Details........Problem
Details........</Problem>
<SeverityLevel>3</SeverityLevel>
<CurrentState>string</CurrentState>
</SafRequestListVO>
<SafRequestListVO>
<RequestGuid>3F2504E0-4F89-11D3-9A0C-0305E82C3302</RequestGuid>
<SAFNumber>2</SAFNumber>
<RequestDate>02/21/2006</RequestDate>
<Requestor>Bill</Requestor>
<IssuedToDepartment>1</IssuedToDepartment>
<IssuedToArea>2</IssuedToArea>
<IssuedByDepartment>string</IssuedByDepartment>
<Problem>Problem Details........Problem
Details........Problem Details........Problem
Details........Problem Details........</Problem>
<SeverityLevel>1</SeverityLevel>
<CurrentState>string</CurrentState>
</SafRequestListVO>
<SafRequestListVO>
<RequestGuid>3F2504E0-4F89-11D3-9A0C-0305E82C3303</RequestGuid>
<SAFNumber>3</SAFNumber>
<RequestDate>01/06/2007</RequestDate>
<Requestor>Jonathan</Requestor>
<IssuedToDepartment>8</IssuedToDepartment>
<IssuedToArea>2</IssuedToArea>
<IssuedByDepartment>string</IssuedByDepartment>
<Problem>string</Problem>
<SeverityLevel>1</SeverityLevel>
<CurrentState>string</CurrentState>
</SafRequestListVO>
<SafRequestListVO>
<RequestGuid>3F2504E0-4F89-11D3-9A0C-0305E82C3304</RequestGuid>
<SAFNumber>4</SAFNumber>
<RequestDate>03/27/2007</RequestDate>
<Requestor>Bill</Requestor>
<IssuedToDepartment>7</IssuedToDepartment>
<IssuedToArea>2</IssuedToArea>
<IssuedByDepartment>string</IssuedByDepartment>
<Problem>Problem Details........Problem
Details........Problem Details........Problem
Details........Problem Details........</Problem>
<SeverityLevel>3</SeverityLevel>
<CurrentState>string</CurrentState>
</SafRequestListVO>
<SafRequestListVO>
<RequestGuid>3F2504E0-4F89-11D3-9A0C-0305E82C3305</RequestGuid>
<SAFNumber>5</SAFNumber>
<RequestDate>12/21/2006</RequestDate>
<Requestor>Mike</Requestor>
<IssuedToDepartment>4</IssuedToDepartment>
<IssuedToArea>2</IssuedToArea>
<IssuedByDepartment>string</IssuedByDepartment>
<Problem>string</Problem>
<SeverityLevel>2</SeverityLevel>
<CurrentState>string</CurrentState>
</SafRequestListVO>
<SafRequestListVO>
<RequestGuid>3F2504E0-4F89-11D3-9A0C-0305E82C3306</RequestGuid>
<SAFNumber>6</SAFNumber>
<RequestDate>04/02/2007</RequestDate>
<Requestor>Nick</Requestor>
<IssuedToDepartment>2</IssuedToDepartment>
<IssuedToArea>2</IssuedToArea>
<IssuedByDepartment>string</IssuedByDepartment>
<Problem>Problem Details........Problem
Details........Problem Details........Problem
Details........Problem Details........</Problem>
<SeverityLevel>3</SeverityLevel>
<CurrentState>string</CurrentState>
</SafRequestListVO>
<SafRequestListVO>
<RequestGuid>3F2504E0-4F89-11D3-9A0C-0305E82C3307</RequestGuid>
<SAFNumber>7</SAFNumber>
<RequestDate>03/27/2007</RequestDate>
<Requestor>Sandeep</Requestor>
<IssuedToDepartment>4</IssuedToDepartment>
<IssuedToArea>2</IssuedToArea>
<IssuedByDepartment>string</IssuedByDepartment>
<Problem>Problem Details........Problem
Details........Problem Details........Problem
Details........</Problem>
<SeverityLevel>2</SeverityLevel>
<CurrentState>string</CurrentState>
</SafRequestListVO>
</GetRequestListResult>
</GetRequestListResponse>
</mx:XML>
</mx:Application>

Answer 1

Michael, I am sorry, but I myself have significant difficulty
with xml namespaces. I have managed to get some examples working
but only by trial and error and studying up on Namespace in the
docs.
http://www.cflex.net/showfiledetails.cfm?ChannelID=1&Object=File&objectID=582
I am just not good enough with them to be able to tell you
what you need to do.
Tracy