XSLT <xsl:when> Element
 Complete XSLT Element Reference
Definition and Usage
The <xsl:when> element is used to specify an action for the <xsl:choose> element.
The <xsl:when> element evaluates an expression, and if it returns true, an
action is performed.
Note: The <xsl:when> element is used in conjunction with <xsl:choose> and <xsl:otherwise>
to express multiple conditional tests.
Syntax
<xsl:when
test="boolean-expression">
<!-- Content: template -->
</xsl:when>
|
Attributes
| Attribute |
Value |
Description |
| test |
boolean-expression |
Required. Specifies a Boolean expression to be tested |
Example 1
The code below will add a pink background-color to the artist column WHEN the
price of the cd is higher than 10.
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<html>
<body>
<h2>My CD Collection</h2>
<table border="1">
<tr bgcolor="#9acd32">
<th>Title</th>
<th>Artist</th>
</tr>
<xsl:for-each select="catalog/cd">
<tr>
<td><xsl:value-of select="title"/></td>
<xsl:choose>
<xsl:when test="price>'10'">
<td bgcolor="#ff00ff">
<xsl:value-of select="artist"/></td>
</xsl:when>
<xsl:otherwise>
<td><xsl:value-of select="artist"/></td>
</xsl:otherwise>
</xsl:choose>
</tr>
</xsl:for-each>
</table>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
|
View the XML file,
View the XSL file, and
View the result.
Example 2
Declare a variable named "color". Set its value to the color attribute of the
current element. If the current element has no color attribute, the value of
"color" will be "green":
<xsl:variable name="color">
<xsl:choose>
<xsl:when test="@color">
<xsl:value-of select="@color"/>
</xsl:when>
<xsl:otherwise>green</xsl:otherwise>
</xsl:choose>
</xsl:variable>
|
Complete XSLT Element Reference
 |
|
|
|
Check your site for errors with one click. No more one-by-one page checks, DeepTrawl will find all the errors on your site in seconds.
DeepTrawl is incredibly easy to use, simply type the url of your site & hit go. You'll see all the errors in all your pages, including:
- Dead Links (404's etc.) |
- Missing Images |
- Spelling Mistakes (USA / UK / Canadian English) |
- Invalid xhtml (checked against w3c standards) |
- Common html Errors (missing meta-tags etc.) |
- User Defined Errors (out of date texts/html etc.) |
- Unwanted User Postings (profanity, spam) |
Fix any error easily using the integrated html editor. Download free trial now for PC & Mac.
More Info || Download Free Trial || Watch Demo Video
|
|
 |
|
Get Your Diploma!
W3Schools' Online Certification Program is the perfect solution for busy
professionals who need to balance work, family, and career building.
The HTML Certificate is for developers who want to document their knowledge of HTML, XHTML, and CSS.
The JavaScript Certificate is for developers who want to document their knowledge of JavaScript and the HTML DOM.
The ASP Certificate is for developers who want to document their knowledge of ASP, SQL, and ADO.
|
|
HOME
Printer friendly page
