XSLT <choisir>
La balise <xsl: choose> spécifie plusieurs tests conditionnels par rapport au contenu des nœuds en conjonction avec les éléments <xsl: else> et <xsl: when>.
Déclaration
Voici la déclaration de syntaxe de <xsl:choose> élément.
<xsl:choose >
</xsl:choose>
Éléments
Nombre d'occurrences | Illimité |
---|---|
Parent elements |
xsl: attribut, xsl: commentaire, xsl: copy, xsl: element, xsl: fallback, xsl: for-each, xsl: if, xsl: message, xsl: sinon, xsl: param, xsl: processing-instruction, xsl: template, xsl: variable, xsl: when, xsl: with-param, éléments de sortie |
Child elements |
xsl: sinon, xsl: quand |
Exemple de démonstration
Cet exemple crée une table d'élément <student> avec son attribut rollnoet son enfant <firstname>, <lastname>, <nickname> et <marks> en itérant sur chaque élève. Il vérifie puis imprime les détails de la note.
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>
Production
![](https://assets.edu.lat/xslt/images/xlst_students_choose.jpg)