Question

Given this XML:

<Table>
  <ID>3589</ID>
  <Type>Change Request</Type>
  <Version>1</Version>
  <Summary>...</Summary>
</Table>
<Table>
  <ID>3596</ID>
  <Version>1</Version>
  <Type>Change Request</Type>
  <Summary>...</Summary>
</Table>
<Table>
  <ID>4818</ID>
  <Type>Bug</Type>
  <Version>1</Version>
  <Summary>...</Summary>
</Table>
<Table>
  <ID>4819</ID>
  <Type>Bug</Type>
  <Version>1</Version>
  <Summary>...</Summary>
</Table>
<Table>
  <ID>4820</ID>
  <Type>Bug</Type>
  <Version>2</Version>
  <Summary>...</Summary>
</Table>

I use this XSLT:

...
<xsl:for-each select="//Table[Version=$vn]">
  <xsl:sort select="Type" />
   <xsl:variable name="currentType" select="Type" />
   <xsl:if test="not($currentType=preceding-sibling::Table/Type)">
      <h2><xsl:value-of select="Type" /></h2>
   </xsl:if>
   <p><b><xsl:value-of select="ID" /></b>:<xsl:value-of select="Summary" /></p>
</xsl:for-each>
...

What test do I need to use to only show Type when it changes? I only want te first occurence to show. Right now preceding-sibling::Table/Type always refers to the first ‘row’

The transformation is done in C#.

Answer 1

How about this:

<xsl:if test="not(preceding-sibling::Table[Version=$vn][Type=$currentType])">