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XPath expression help

I'd like to write an XPath expression that gets all nodes with a given
local-name, say 'Customer', within a given namespace. From a prior response
I got the following to get nodes with a specific local-name:

//*[local-name() = 'thenamehere']

But how would I modify this to look only within a given namespace (although
not likely, I could have 'Customer' defined in multiple namespaces)?

Any help would be great!

Paul
Nov 18 '05 #1
2 1283


Paul wrote:
I'd like to write an XPath expression that gets all nodes with a given
local-name, say 'Customer', within a given namespace.


Well XPath has namespace support, in the XPath expression you use a
prefix bound to a namespace URI where that binding happens outside of
the XPath expression language. Thus
//pf:Customer
with the prefix pf bound to the proper namespace URI selects all
Customer elements in that namespace.
How you bind that prefix to the namespace URI depends on where/how you
use XPath, within an XSLT stylesheet you would simply declare that e.g.

<xsl:styleshe et
xmlns:xsl="http ://www.w3.org/1999/XSL/Transform"
xmlns:pf="http://example.com/ns1" version="1.0">

If you use some API to evaluate XPath expressions you need to check the
documentation, for MSXML see this post
<http://groups.google.c om/group/microsoft.publi c.xml/msg/78260972bdb86cc f>

For .NET you need to use an XmlNamespaceMan ager, bind the prefix you
want to use to the namespace URI and pass the namespace manager as the
second argument to SelectNodes/SelectSingleNod e.

--

Martin Honnen --- MVP XML
http://JavaScript.FAQTs.com/
Nov 18 '05 #2
Hi Paul,

Have you updated the namespace in the namespace manager?

Kevin Yu
=======
"This posting is provided "AS IS" with no warranties, and confers no
rights."

Nov 23 '05 #3

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