XSLT <xsl: variable> element
Complete XSLT Element Reference Manual Definition and Usage
<Xsl: variable> element is used to declare local or global variables.
Note: If, as a top-level element (top-level element) to declare, it is a global variable.If you declare a variable within a template, it is a local variable.
Note: Once you have set the value of the variable, you can not change or modify this value!
Tip: You can <xsl: variable> element or content through select properties, add value to a variable!
grammar
name="name"
select="expression">
<!-- Content:template -->
</xsl:variable>
Attributes
| 属性 | 值 | 描述 |
|---|---|---|
| name | name | 必需。规定变量的名称。 |
| select | expression | 可选。定义变量的值。 |
Example 1
If the select attribute, <xsl: variable> element can not contain any content. If the select attribute contains a text string, the string in quotes must be given. The following two examples for the variable "color" assigned "red":
Example 2
If <xsl: variable> element contains only the name attribute, and no content, the value of the variable is an empty string:
Example 3
The following examples by <xsl: variable> element contents of the variable "header" Assignment:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:variable name="header">
<tr>
<th>Element</th>
<th>Description</th>
</tr>
</xsl:variable>
<xsl:template match="/">
<html>
<body>
<table>
<xsl:copy-of select="$header" />
<xsl:for-each select="reference/record">
<tr>
<xsl:if category="XML">
<td><xsl:value-of select="element"/></td>
<td><xsl:value-of select="description"/></td>
</xsl:if>
</tr>
</xsl:for-each>
</table>
<br />
<table>
<xsl:copy-of select="$header" />
<xsl:for-each select="table/record">
<tr>
<xsl:if category="XSL">
<td><xsl:value-of select="element"/></td>
<td><xsl:value-of select="description"/></td>
</xsl:if>
</tr>
</xsl:for-each>
</table>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
Complete XSLT Element Reference Manual