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4/8/2010

Returns True if the argument is false, and a false otherwise.

Syntax 

		
boolean not(
boolean)

Parameters

boolean

A Boolean value.

Return Value

Returns True if the argument is false, and a false otherwise.

Example

In this example, the notexample.xsl stylesheet is applied to the books.xml document. For each book node, the value of the price element is evaluated and if it is not greater than 10, the value of the title element and the value of the price element are output to the browser.

Books.xml

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<?xml-stylesheet type="text/xsl" href="notexample.xsl"?>
<catalog>
  <book id="bk101">
	<author>Gambardella, Matthew</author>
	<title>XML Developer's Guide</title>
	<genre>Computer</genre>
	<price>44.95</price>
	<publish_date>2000-10-01</publish_date>
	<description>An in-depth look at creating applications
with
	XML.</description>
  </book>
  <book id="bk102">
	<author>Ralls, Kim</author>
	<title>Midnight Rain</title>
	<genre>Fantasy</genre>
	<price>5.95</price>
	<publish_date>2000-12-16</publish_date>
	<description>A former architect battles corporate
zombies, 
	an evil sorceress, and her own childhood to become queen of 
	the world.</description>
  </book>
</catalog>

notexample.xsl

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<?xml version='1.0'?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="1.0">
<xsl:template match="/">
  <xsl:for-each select="//book[not(price &gt; 10)]">
	<xsl:value-of select="title"/> -
	$<xsl:value-of select="price"/><br/>
  </xsl:for-each>
</xsl:template>
</xsl:stylesheet>

Result

Copy Code 
Midnight Rain - $5.95

See Also