Support for the msxsl:node-set() Function
The msxsl:node-set function enables you to convert a result tree fragment into a node set. The resulting node set always contains a single node and is the root node of the tree.
Example
In the following example, $var is a variable that is a node tree in the style sheet. The for-each statement combined with the node-set function allows the user to iterate over this node tree as a node set.
nodeset.xsl
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:msxsl="urn:schemas-microsoft-com:xslt"
xmlns:user="https://www.contoso.com"
version="1.0">
<xsl:variable name="books">
<book author="Michael Howard">Writing Secure Code</book>
<book author="Michael Kay">XSLT Reference</book>
</xsl:variable>
<xsl:template match="/">
<authors>
<xsl:for-each select="msxsl:node-set($books)/book">
<author><xsl:value-of select="@author"/)</author>
</xsl:for-each>
</authors>
</xsl:template>
</xsl:stylesheet>
The output of the transformation:
Output
<?xml version="1.0" encoding="utf-8"?>
<authors><author>Michael Howard</author><author>Michael Kay</author></authors>