Help trying to delete selected node tree.

Question

Hello All,
I'm hoping someone can give me some insight into what I'm
trying to do. I've got a tree that gets populated through an xml
data provider. Basically i'm building an XML editor for a very
specific application and I want to be able to delete (or edit,
change, etc) a selected node. My XML, at a high level, looks like
the following (it may look familiar as I've posted other questions)
<template>
<tab label="General">
<section label="Address">
<field label="Street 1" />
<field label="Street 2" />
</section>
<section label="Misc">
<field label="Street 1" />
</section>
</tab>
</template>
I've build a delete function that works but its not very
flexible and has several problems with it, not the least is that if
I have two identical nodes (the "street 1" in the above example) it
will delete the first one which isn't necessarilly the "selected"
node in the tree. This is where I'm hoping for some pointers on how
to make this better.
private function alertResponse(event:CloseEvent):void
if(event.detail == Alert.YES)
var elementName:String = selectedNode.localName().toString();
var elementLabel:String = selectedNode.@label;
switch(elementName)
case "tab":
delete templateXML.tab.(@label == elementLabel)[0];
break;
case "section":
delete templateXML.tab.section.(@label == elementLabel)[0];
break;
case "field":
delete templateXML.tab.section.field.(@label ==
elementLabel)[0];
break;
Any insight, opinion, suggestions, comments, etc., would be
appreciated.

Answer 1

Thanks Tracy,
I finally had a chance to circle back to this and I
downloaded your xml editor. While i didn't actually run it i did
have a chance to peruse the code and sure enough your delete method
was exactly what I was looking for.
For anyone who happens upon this thread here's the solution:
private function deleteSelectedNode():void
// get the selectedNode into XML
var selectedNode:XML = XML(tree.selectedItem);
// get a listCollection of the selectedNodes siblings, the
list collection
// is what provides us with the removeItemAt method.
var siblingList:XMLListCollection = new
XMLListCollection(selectedNode.parent().children());
// figure out where the selectedNode is in relation to its
siblings
var selectedNodeIndext:int =
siblingList.getItemIndex(selectedNode);
// The "magic" line.
siblingList.removeItemAt(selectedNodeIndex);
}