flex - xml nodes will not delete despite calling "delete" -

i'm trying use delete keyword remove nodes xml file , plain won't work.

here's stripped down example of i'm working with. every node has child named "deleteme". if value equal 1 want remove xml file. if else want leave be. delete method deffinately gettig call it's having no effect.

<?xml version="1.0" encoding="utf-8"?>      <stuff>         <i>             <deleteme>             0             </deleteme>         </i>         <i>             <deleteme>             1             </deleteme>         </i>         <i>             <deleteme>             0             </deleteme>         </i>      </stuff> 

actionscript

var xmllist:xmllist=_sourcexml.i;                  (var j:int=0; j < _xmllist.length(); j++)                 {                      if (xmllist[j].deleteme== 1)                     {                         delete xmllist[j];                      }                  } //breakpoint here. xmllist still contains nodes should have been deleted                 xmllistcoll=new xmllistcollection(xmllist);                 xmllistcoll.refresh() 

edit

if trace xmllist lenght before , after delete loop length indeed different. seems reason xmllist being passed xmllistcollection 1 node not deleted. makes no sense me.

edit 2

the following gives desired result. still know why former method not working.

for (var j:int=0; j < xmllist.length(); j++)                 {                     //trace(xmllist[j].deleteme)                     if (xmllist[j].deleteme!=1 )                     {                         //delete xmllist[j];                         xmllistcoll.additem(xmllist[j])                      }                  } 

yo

you need 'for loop' in reverse. goes removing items in collection/list via iteration loop.

when item deleted (e.g. index 2 when j 2), next item in list fills space left deleted item (e.g. index 3 becmoes index 2), j gets increased 3, , shifted item (in index 2) gets skipped. following work:

var _xmllist:xmllist=_sourcexml.i;  (var j:int=_xmllist.length() - 1; j >= 0 ; j--) {                        if (_xmllist[j].deleteme == 1)     {         delete _xmllist[j];                          }                    }