Datagrid rearranging columns?

Question

I'm having a problem. This code i have written will import
the XML but it rearranges the fields when i do this:
"for (var subKey:String in data[0])"
All of the fields come through but the subKey order is not in
the order of the actual XML. Is there any way to get the
"$ColumnNames[$w]" var from php over to flex in the same order?
I don't know if i just reinvented the wheel, but it was
definitely a good learning experience.
MXML is first then PHP is second. Some of the code is copied
off other examples. I didn't see any copyrights but let me know if
there are any problems. O and the error thing doesn't work on the
PHP page.

Answer 1

I am look for a solution to a similar problem.
I've got this nice little .fla that displays a DataGrid component (Flash CS3 Professional) using a DataProvider created from XML loaded from URLRequest/URLLoader (.asp source, but could be PHP, etc.).
It works great except for one little annoying item.  The order of the columns seems to be totally arbitrary.
I was expecting the order of the column to be the same as they occur in the XML DATA element.
Here is a sample DATA element (there are serveral such DATA elements in the XML:
<DATA>
  <AreaID>TNV</AreaID>
  <AreaName>TN, VA</AreaName>
  <MaxDvrHT>4</MaxDvrHT>
  <BoardName>TN, VA</BoardName>
  <RegionName>SOUTHEAST</RegionName>
  <salesGroup>David</salesGroup>
</DATA>
Here is the function that builds DataGrid:
function returnAJAXcallback(evtObj:Event):void{
// executed by URLLoader event listener "complete"
// load the XML returned from .asp into XML object
var myXML:XML = XML(evtObj.target.data);   
// create a data provider from the XML
var myDP = new DataProvider(myXML);  
// create a DataGrid
var myDataGrid:DataGrid = new DataGrid;  
// set the data provider
myDataGrid.dataProvider=myDP;   
myDataGrid.width = 900;
myDataGrid.height = 500;
// show DataGrid on stage
addChild(myDataGrid);     
for each (var child:XML in myXML.DATA) {
  trace(child) ;  // list each DATA segment
Here is the order that the columns appear in the DataGrid (left to right):
AreaName
RegionName
salesGroup
AreaID
MaxDvrHT
BoardName
So, how in the world does Flash come up with this order?
Why not default to the order in which the columns appear in the XML?
Now, if some nice person knows the answer (I'm pretty new to Flash), what do I need to do (with as little code as possible) to get the columns ordered in a similar fashion to the order in which the XML data elements appear?
Thanks to all.