Use .. to indicate level


File: Data.xml
<winelist>
  <wine grape="A">
    <winery>shop 2</winery>
    <product>product 2</product>
    <year>2008</year>
    <prices>
      <list>10.99</list>
      <discounted>9.50</discounted>
    </prices>
  </wine>

</winelist>

File: Transform.xslt

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  version="1.0">
  <xsl:output method="xml" omit-xml-declaration="yes" indent="no" />
  <xsl:template match="winelist">
    Wines needing their "discount" value set:
    <xsl:for-each select="wine/prices/discounted[not(text())]">
      <xsl:value-of select="../../year" />
      <xsl:text> </xsl:text>
      <xsl:value-of select="../../winery" />
      <xsl:text> </xsl:text>
      <xsl:value-of select="../../product" />
    </xsl:for-each>
  </xsl:template>
</xsl:stylesheet>

Related examples in the same category

1.	Don't output text nodes unless explicitly told to
2.	Get sibling with ../
3.	Select element out of parent tag

Use .. to indicate level : parent « XSLT stylesheet « XML

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