<xsl:choose> tag specifies a multiple conditional tests against the content of nodes in conjunction with the <xsl:otherwise> and <xsl:when> elements.
Following is the syntax declaration of <xsl:choose> element.
<xsl:choose > </xsl:choose>
Number of Occurrences | Unlimited |
---|---|
Parent elements |
xsl:attribute, xsl:comment, xsl:copy, xsl:element, xsl:fallback, xsl:for-each, xsl:if, xsl:message, xsl:otherwise, xsl:param, xsl:processing-instruction, xsl:template, xsl:variable, xsl:when, xsl:with-param, output elements |
Child elements |
xsl:otherwise, xsl:when |
此示例通过遍历每个学生创建一个具有其属性rollno及其子<firstname>,<lastname>,<nickname>和<marks> 的<student>元素的表。它检查并打印成绩详细信息。
students.xml
<?xml version = "1.0"?> <?xml-stylesheet type = "text/xsl" href = "students.xsl"?> <class> <student rollno = "393"> <firstname>Dinkar</firstname> <lastname>Kad</lastname> <nickname>Dinkar</nickname> <marks>85</marks> </student> <student rollno = "493"> <firstname>Vaneet</firstname> <lastname>Gupta</lastname> <nickname>Vinni</nickname> <marks>95</marks> </student> <student rollno = "593"> <firstname>Jasvir</firstname> <lastname>Singh</lastname> <nickname>Jazz</nickname> <marks>90</marks> </student> </class>
students.xsl
<?xml version = "1.0" encoding = "UTF-8"?> <xsl:stylesheet version = "1.0" xmlns:xsl = "http://www.w3.org/1999/XSL/Transform"> <xsl:template match = "/"> <html> <body> <h2>Students</h2> <table border = "1"> <tr bgcolor = "#9acd32"> <th>Roll No</th> <th>First Name</th> <th>Last Name</th> <th>Nick Name</th> <th>Marks</th> <th>Grade</th> </tr> <xsl:for-each select = "class/student"> <tr> <td><xsl:value-of select = "@rollno"/></td> <td><xsl:value-of select = "firstname"/></td> <td><xsl:value-of select = "lastname"/></td> <td><xsl:value-of select = "nickname"/></td> <td><xsl:value-of select = "marks"/></td> <td> <xsl:choose> <xsl:when test = "marks > 90"> High </xsl:when> <xsl:when test = "marks > 85"> Medium </xsl:when> <xsl:otherwise> Low </xsl:otherwise> </xsl:choose> </td> </tr> </xsl:for-each> </table> </body> </html> </xsl:template> </xsl:stylesheet>