distinct in Xpath?

Question

I have this XML file, from which I\'d like to count the number of users referenced in it. But they can appear in more than one category, and I\'d like these duplicates not t

Answer 1

using the functions namespace http://www.w3.org/2005/xpath-functions you can use

distinct-values(//list/group/user)

UPDATE:

At the top of your xsl/xslt file you should have a stylesheet element, map the url above to the prefix fn as below...

then you can use

select="fn:distinct-values(//list/group/user)"

this would assume you are doing this in templates and not in some xpathdocument object inwhich case you need to use a namespacemanager class.

links...

XSLT: Add namespace to root element

http://www.xqueryfunctions.com/xq/fn_distinct-values.html

http://msdn.microsoft.com/en-us/library/d6730bwt(VS.80).aspx

Otherwise try Dimitre Novatchev's answer.