XSLT <xsl:if> Element
The <xsl:if> element is used to put a conditional test
against the content of the XML file.
The <xsl:if> Element
To put a conditional if test against the content of the XML file, add an
<xsl:if> element to the XSL document.
Syntax
<xsl:if test="expression">
...
...some output if the expression is true...
...
</xsl:if>
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Where to Put the <xsl:if> Element
To add a conditional test, add the <xsl:if> element inside the <xsl:for-each> element in
the XSL file:
<?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>
|
Note: The value of the required test attribute contains the expression to be
evaluated.
The code above will only output the title and artist elements of the CDs that
has a price that is higher than 10.
The result of the transformation above will look like this:
My CD Collection
| Title |
Artist |
| Empire Burlesque |
Bob Dylan |
| Still got the blues |
Gary Moore |
| One night only |
Bee Gees |
| Romanza |
Andrea Bocelli |
| Black Angel |
Savage Rose |
| 1999 Grammy Nominees |
Many |
View the XML file,
View the XSL file, and
View the result
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