Re: [xsl] test if null

Subject: Re: [xsl] test if null
From: David Carlisle <davidc@xxxxxxxxx>
Date: Mon, 27 Jun 2005 10:39:02 +0100
   How would i test if a node is null?

XPath doesn't have a null value. Testing for empty has an entry in teh
FAQ.


   like i have this empty node <EMPTYNODE />
   <xsl:when test="EMPTYNODE[.!= '']">

   is not working.

That tests if the string value of EMPTYNODE is not the empty string so
<EMPTYNODE /> and <EMPTYNODE ><foo/></EMPTYNODE> would test teh same way
as they both have a string value of ''.
If you want to test if teher eare no children, then the set of child
nodes will be empty 
   <xsl:when test="EMPTYNODE[not(node())]">


David

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