 | | | test attribute null evaluation doesn 't work | test attribute null evaluation doesn 't work 2003-05-06 - By kroberts@(protected)
I'm sorry to bother you all over this; but I've tried several things and
can't get this to work in xalan-j 2.5.0. I am also fairly new to xslt.
This code evaluates to true when StartTime is not set. <xsl:when test
="$StartTime"> I want it to evaluate to false. It worked fine in xalan-1.
Here is a simple test stylesheet.
<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version
="1.0"
xmlns:xalan="http://xml.apache.org/xalan"
exclude-result-prefixes="xalan">
<xsl:output method="xml" version="1.0" encoding="ISO-8859-1"/>
<xsl:strip-space elements="*"/>
<xsl:param name="TimeOption">AllTimes</xsl:param>
<xsl:param name="TimeValues"/>
<!-- variables used for setting up search criteria -->
<xsl:variable name="StartTime">
<xsl:if test="$TimeOption='SlidingTimes' or $TimeOption
='SpecificTimes'">
<xsl:value-of select="substring-before($TimeValues, ';')"/>
</xsl:if>
</xsl:variable>
<xsl:variable name="EndTime">
<xsl:if test="$TimeOption='SlidingTimes' or $TimeOption
='SpecificTimes'">
<xsl:value-of select="substring-after($TimeValues, ';')"/>
</xsl:if>
</xsl:variable>
<!-- main template -->
<xsl:template match="/">
<xsl:message>**************$TimeOption****<xsl:value-of select
="$TimeOption"/>*****</xsl:message>
<xsl:message>**************$StartTime****<xsl:value-of select
="$StartTime"/>*****</xsl:message>
<queryVariables>
<xsl:choose>
<xsl:when test="$StartTime">
<!-- Start Time -->
<Item>
<attribute ncid="4" />
<value>
<text>
<xsl:value-of select="$StartTime" />
</text>
</value>
</Item>
<!-- End Time -->
<Item>
<attribute ncid="5" />
<value>
<text>
<xsl:value-of select="$EndTime" />
</text>
</value>
</Item>
</xsl:when>
</xsl:choose>
</queryVariables>
</xsl:template>
</xsl:stylesheet>
Any assistance will be greatly appreciated.
Keith...
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