Subject: Re: Checking for empty values From: "Steve Hankin" <steve.hankin@xxxxxxxx> Date: Mon, 17 Jul 2000 16:14:49 +0100 |
I'm trying to do something similar (with a database markup). I can see how to check if it is a string node, but I also want to check for when it is not. I am matching against a list of objects and would like to display the element contents, or 'NULL' if it has no string content. My (incorrect) attempt is this... <xsl:if test="string(.)"> <xsl:value-of select="."/> </xsl:if> <xsl:if test="not(string(.))"> NULL </xsl:if> Thanks, Steve Kay Michael wrote: > > I want to have my XSL stylesheet evaluate to see if a tag > > exists or the value is blank. How do I do this using <xsl:if> or > <xsl:when> ? > > > To test if the element exists: > > <xsl:template match="book"> > <xsl:if test="author"> > > To test if the element exists and is non-empty: > > <xsl:template match="book"> > <xsl:if test="string(author)"> > > Mike Kay > > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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