Microsoft XML SDK 2.6 - XSLT Reference

xsl:value-of Element

Inserts the value of the selected node as text.

<xsl:value-of
  select = expression
  disable-output-escaping = "yes" | "no" 
</xsl:value-of>

Attributes

select
Required. Expression to be evaluated against the current context. The results are converted to a string as by a call to the string() function. A nodeset is converted to a string by inserting the string value of the first node in the set.
disable-output-escaping
Default is "no". If the value is "yes", a text node generated by instantiating the <xsl:text> element will be output without any escaping. For example,
<xsl:text disable-output-escaping="yes">&lt;</xsl:text> 

generates the single character "<".

Note   disable-output-escaping="yes" can be used to generate non-well-formed documents, and thus should be used with caution, since non-well-formed output may generate errors in certain circumstances. For instance, transformNodeToObject to an XML Document requires that the result be well-formed and thus may not complete if disable-output-escaping has affected the well-formedness of the document. We recommend considering disable-output-escaping="yes" as an advanced feature to be used only when the potential dangers are understood.

Element Information

Number of occurrences Unlimited
Parent elements xsl:attribute, xsl:comment, xsl:copy, xsl:element, xsl:for-each, xsl:if, xsl:otherwise, xsl:param, xsl:processing-instruction, xsl:template, xsl:variable, xsl:when, xsl:with-param, output elements
Child elements (No child elements)

Remarks

The <xsl:value-of> element inserts a text string representing the value of the first element (in document order) specified by the select attribute.

If the XPath expression returns more than a single node, the <xsl:value-of> element returns the text of the first node returned (equivalent to the XMLDOMNode object's selectSingleNode method). If the node returned is an element with substructure, <xsl:value-of> returns the concatenated text nodes of that element's subtree with the markup removed.

Example

Given this XML,

<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="family.xsl"?>
<family>
  <person>
    <given-name age="10">Fred</given-name>
    <family-name>Smith</family-name>
  </person>
  …
</family>

the following creates an HTML paragraph from a "person" element with "given-name" and "family-name" child elements. The paragraph will contain the string-value of the first "given-name" child element of the current node, followed by a space and the string-value of the first "family-name" child element of the current node.

<xsl:template match="person">
  <p>
    <xsl:value-of select="given-name"/>
    <xsl:text> </xsl:text>
    <xsl:value-of select="family-name"/>
  </p>
</xsl:template>

See Also

Creating and Populating an HTML Template