Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
sum Function (XPath)
Collapse the table of content
Expand the table of content

sum Function (XPath)

Returns the sum of all nodes in the node-set. Each node is first converted to a number value before summing.

          number sum(node-set)

This example demonstrates the XPath expression sum(//a). It returns 6, which is the sum of the numbers in <a> elements.

XML File (as.xml)

<?xml version='1.0'?>
<?xml-stylesheet type="text/xsl" href="sum.xsl"?>

XSLT File (sum.xsl)

<?xml version='1.0'?>
<xsl:stylesheet version="1.0"

<xsl:template match="/">
   <xsl:value-of select='sum(//a)'/>


Formatted Output


Processor Output

<?xml version="1.0" encoding="UTF-16"?>6

Build Date:

© 2015 Microsoft