XSLT <scegli>

Il tag <xsl: choose> specifica più test condizionali rispetto al contenuto dei nodi insieme agli elementi <xsl: else> e <xsl: when>.

Dichiarazione

Di seguito è riportata la dichiarazione della sintassi di <xsl:choose> elemento.

<xsl:choose >
</xsl:choose>

Elementi

Numero di occorrenze Illimitato

Parent elements

xsl: attribute, xsl: comment, xsl: copy, xsl: element, xsl: fallback, xsl: for-each, xsl: if, xsl: message, xsl: altrimenti, xsl: param, xsl: processing-instructions, xsl: template, xsl: variable, xsl: when, xsl: with-param, elementi di output

Child elements

xsl: altrimenti, xsl: quando

Esempio demo

Questo esempio crea una tabella dell'elemento <student> con il suo attributo rollnoe il suo figlio <firstname>, <lastname>, <nickname> e <marks> iterando su ogni studente. Controlla e quindi stampa i dettagli del voto.

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>

Produzione