• Chapter 1: Getting Started with Stylus Studio
• Chapter 2: Editing and Querying XML
• Chapter 3: Converting Non-XML Files to XML
• Chapter 4: Working with XSLT
  • Getting Started with XSLT
  • Tutorial: Understanding How Templates Work
  • Working with Stylesheets
  • Creating Stylesheets That Generate HTML
  • Specifying Extension Functions in Stylesheets
  • Working with Templates
  • Using an External XSLT Processor
  • Postprocessing Result Documents
  • Generating Formatting Objects
  • Generating Scalable Vector Graphics
  • XSLT Instructions Quick Reference
• Chapter 5: Creating XSLT Using the XSLT Mapper
• Chapter 6: Debugging Stylesheets
• Chapter 7: Defining XML Schemas
• Chapter 8: Defining Document Type Definitions
• Chapter 9: Writing XPath Expressions
• Chapter 10: Working with XQuery in Stylus Studio
• Chapter 11: Composing Web Service Calls
• Chapter 12: Accessing Relational Data as XML
• Chapter 13: Extending Stylus Studio
• Chapter 14: Stylus Studio Reference

Home > Online Product Documentation > Table of Contents > xsl:if

xsl:if

Conditionally instantiates the contained template body.

Format

<xsl:if test = "expression">
               

              

                
template_body
                   

                
              
</xsl:if>
               

            

Description

The XSLT processor evaluates the expression and converts the result to a Boolean value. If the result is true, the XSLT processor instantiates template_body. If the result is false, the xsl:if element has no effect.

Example

This following example formats a group of names as a comma-separated list:

<xsl:template match="namelist/name">
               

              

                
<xsl:value-of select="." />
                   
<xsl:if test="not(position()=last())">, </xsl:if>
                   

                
              
</xsl:template>
               

            

If you want the XSLT processor to choose which template to instantiate from several possibilities, specify the xsl:choose instruction. See xsl:choose.