<xsl:when> Element

Provides multiple conditional testing in conjunction with the <xsl:choose> and <xsl:otherwise> elements.

  test = boolean-expression


  • test
    Required. The condition in the source data to test. If the Expressions in this attribute evaluates to True when cast to a Boolean, the content of <xsl:when> is instantiated and placed in the output. Node-sets are cast to a Boolean True if they contain at least one node.

Element Information

Number of occurrences


Parent elements


Child elements

xsl:apply-templates, xsl:attribute, xsl:call-template, xsl:choose, xsl:comment, xsl:copy, xsl:copy-of, xsl:element, xsl:for-each, xsl:if, xsl:processing-instruction, xsl:value-of, xsl:variable, output elements


Describes one of the alternatives to be chosen by the <xsl:choose> element. The default alternative is described by the <xsl:otherwise> element.

For simple conditional testing, use the <xsl:if> element.


See the example in <xsl:choose> Element.

See Also


<xsl:otherwise> Element
<xsl:if> Element