XSLT <xsl:if> Element
 Complete XSLT Element Reference
Definition and Usage
The <xsl:if> element contains a template that will be applied only if a specified condition is true.
Tip: Use <xsl:choose> in conjunction with <xsl:when> and <xsl:otherwise> to
express multiple conditional tests!
Syntax
<xsl:if
test="expression">
<!-- Content: template -->
</xsl:if>
|
Attributes
| Attribute |
Value |
Description |
| test |
expression |
Required. Specifies the condition to be tested |
Example 1
Select the values of title and artist IF the price of the CD is higher than
10:
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<html>
<body>
<h2>My CD Collection</h2>
<table border="1">
<tr bgcolor="#9acd32">
<th>Title</th>
<th>Artist</th>
</tr>
<xsl:for-each select="catalog/cd">
<xsl:if test="price > 10">
<tr>
<td><xsl:value-of select="title"/></td>
<td><xsl:value-of select="artist"/></td>
</tr>
</xsl:if>
</xsl:for-each>
</table>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
|
View the XML file,
View the XSL file, and
View the result
Example 2
Display the title of each CD. Insert ", " between each CD-title if it is not
the last CD or the last but one. If it is the last CD, add "!" behind the title.
If it is the last but one CD, add ", and " behind the title:
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<html>
<body>
<h2>My CD Collection</h2>
<p>Titles:
<xsl:for-each select="catalog/cd">
<xsl:value-of select="title"/>
<xsl:if test="position()!=last()">
<xsl:text>, </xsl:text>
</xsl:if>
<xsl:if test="position()=last()-1">
<xsl:text> and </xsl:text>
</xsl:if>
<xsl:if test="position()=last()">
<xsl:text>!</xsl:text>
</xsl:if>
</xsl:for-each>
</p>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
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