count Function (XPath)
.NET Framework (current version)
Returns the number of nodes in the node-set argument.
number count(node-set)
XML File (test.xml)
<?xml version="1.0"?> <test> <x a="1"> <x a="2"> <x> <y>y31</y> <y>y32</y> </x> </x> </x> <x a="1"> <x a="2"> <y>y21</y> <y>y22</y> </x> </x> <x a="1"> <y>y11</y> <y>y12</y> </x> <x> <y>y03</y> <y>y04</y> </x> </test>
XSLT File (test.xsl)
<?xml version='1.0'?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:output method="text" /> <xsl:template match="/"> //x, <xsl:value-of select="count(//x)"/> //x[1], <xsl:value-of select="count(//x[1])"/> //x/y, <xsl:value-of select="count(//x/y)"/> //x/y[1], <xsl:value-of select="count(//x/y[1])"/> //x[1]/y[1], <xsl:value-of select="count(//x[1]/y[1])"/> </xsl:template> </xsl:stylesheet>
Output
The XSLT stylesheet, when applied to the XML file above, produces the following results:
| node-set | count(node-set) |
|---|---|
|
//x |
7 |
|
//x[1] |
4 |
|
//x/y |
8 |
|
//x/y[1] |
4 |
|
//x[1]/y[1] |
2 |
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