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The <xsl:if> element contains a test attribute and a template. If the test evaluates to true, the template is processed. In this it is similar to an if statement in other languages. To achieve the functionality of an <tt>if-then-else</tt> statement, however, use the <xsl:choose> element with one <xsl:when> and one <xsl:otherwise> children.


<xsl:if test=EXPRESSION>

Required Attributes

Contains an XPath expression that can be evaluated (using the rules defined for boolean( ) if necessary) to a Boolean value. If the value is true, the template is processed; if it is not, no action is taken.

Optional Attributes



Instruction, appears within a template.


XSL section 9.1.

Gecko support


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 Last updated by: Sheppy,