From: Archana Rao [mailto:archana_heroor(_at_)yahoo(_dot_)com]
Sent: Monday, October 13, 2003 9:25 AM
Subject: [xsl] String comparison
Hi,
I am trying to comparing to see is a string is null,
I have a param named userid, i want to check to see if
'$userid' is not null.
I tried <xsl:if test="$userid!=''>, this does'nt seem
to help.
Assuming that line wasn't a direct paste from your stylesheet (because it's
missing a closing double quote on the test attribute), then I would need to
see more of your stylesheet (and sample XML) before commenting further. I
would point out, however, that XSLT/XPath has no concept of "null"--it is
possible to return an empty string, an empty node-set, or NaN (not a
number), but null is not defined.
cheers,
b.
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