I guess it all depends on what you mean by "ID values". I interpreted it as
equivalent to the position with respect to the parent:

<parent>
  <child/> <!-- id=1 -->
  <child/> <!-- id=2 -->
  <child/> <!-- id=3 -->
  <child/> <!-- id=4 -->
</parent>

So, counting the number of preceding "child" siblings seemed appropriate. Did
you have something else in mind?

Quoting Michael Duffy <[EMAIL PROTECTED]>:

> Thanks, Kris.
> 
> I don't want to get the child value - that's easy
> enough.  I want to get their ID values.  It doesn't
> appear that your code is doing that, but then again
> I'm the guy who doesn't know how.  Maybe I don't
> recognize correct code when I see it.  ;)
> 
> Am I misunderstanding here?  I'll apologize in advance
> if that's so. - MOD
> 
> 
> --- Kris Schneider <[EMAIL PROTECTED]> wrote:
> > This seemed to work:
> > 
> > <%@ page contentType="text/plain" %>
> > <%@ taglib prefix="x"
> > uri="http://java.sun.com/jstl/xml"; %>
> > 
> > <x:parse var="doc">
> > <parent><child/><child/><child/><child/></parent>
> > </x:parse>
> > 
> > <x:set var="child1" select="$doc//parent/child[1]"/>
> > <x:set var="child4" select="$doc//parent/child[4]"/>
> > 
> > child1: <x:out
> > select="count($child1/preceding-sibling::child) +
> > 1"/>
> > child4: <x:out
> > select="count($child4/preceding-sibling::child) +
> > 1"/>
> > 
> > Of course, if you had elements like <child id="1"/>,
> > it would be even easier to
> > get at:
> > 
> > child1: <x:out select="$child1/@id"/>
> > 
> > Quoting Michael Duffy <[EMAIL PROTECTED]>:
> > 
> > > 
> > > If I have an XML stream like this:
> > > 
> > > <parent><child/><child/><child/><child/></parent>
> > > 
> > > I can refer to each child individually using
> > XPath:
> > > 
> > > //parent/child[1] gives me the first child,
> > > //parent/child[2] gives me the second child, 
> > > etc.
> > > 
> > > When I use JSTL <xml> tags, is it possible to get
> > that
> > > ID number out?  I've got a List of child tags that
> > I
> > > want to use in an HTML checkbox input, and I'd
> > like to
> > > be able to identify selected items by their ID. 
> > > Thanks - MOD
> > 
> > -- 
> > Kris Schneider <mailto:[EMAIL PROTECTED]>
> > D.O.Tech       <http://www.dotech.com/>

-- 
Kris Schneider <mailto:[EMAIL PROTECTED]>
D.O.Tech       <http://www.dotech.com/>

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