The <xsl:key>
element declares a named key which can be used elsewhere in the stylesheet with the key( )
function.
Syntax
<xsl:key name=NAME match=EXPRESSION use=EXPRESSION />
Required Attributes
name
- Specifies a name for this key. Must be a QName.
match
- Defines the nodes for which this key is applicable.
use
- Specifies an XPath expression that will be used to determine the value of the key for each of the applicable nodes.
Optional Attributes
None.
Type
Top-level, must be the child of <xsl:stylesheet>
or <xsl:transform>
.
Defined
XSLT, section 12.2.
Gecko support
Supported.