XPath - Root Node


Following are the ways to get root element and do the processing afterwards.

Use Wildcard

Use /* , wild card expression to select the root node.

<p><xsl:value-of select = "name(/*)"/></p>

Use Name

Use /class, to select root node by name.

<p><xsl:value-of select = "name(/class)"/></p>

Use Name with wild card

Use /class/*, select all element under root node.

<p><xsl:value-of select = "name(/class/*)"/></p>


In this example, we've created a sample XML document, students.xml and its stylesheet document students.xsl which uses the XPath expressions.

Following is the sample XML used.


<?xml version = "1.0"?>
<?xml-stylesheet type = "text/xsl" href = "students.xsl"?>
   <student rollno = "393">
   <student rollno = "493">
   <student rollno = "593">


<?xml version = "1.0" encoding = "UTF-8"?>
<xsl:stylesheet version = "1.0"
   xmlns:xsl = "http://www.w3.org/1999/XSL/Transform">  
   <xsl:template match = "/">
            <h3>Root Element. Xpath expression  =  "/*"</h3>
            <p><xsl:value-of select = "name(/*)"/></p>
            <h3>Root Element. Xpath expression = "/class"</h3>
            <p> <xsl:value-of select = "name(/class)"/></p>
            <h3>Details of each Students. Xpath expression = "/class/*"</h3>
            <table border = "1">
               <tr bgcolor = "#9acd32">
                  <th>Roll No</th>
                  <th>First Name</th>
                  <th>Last Name</th>
                  <th>Nick Name</th>
               <xsl:for-each select = "/class/*">
                     <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>

Verify the output

XPath Root expression Output