Re: Controlling tabular layout of a nodeset

I want to display it as:

> +--------+------------------+
> |property1 - prvalue1       |
> +--------+------------------+
> |user_id1|acct_id1, acct_id2|

+--------+------------------+

+--------+------------------+

Seems like a double grouping problem, first by property, then
by user_id. You need a composite key for the inner group.
Try something like
  <xsl:key name="property" match="row" use="property"/>
  <xsl:key name="user_id" match="row" use="
     concat(property,':',user_id)"/>

  <xsl:for-each select="row[generate-id() =
       generate-id(key('property',property)[1])">
    <tr>
      <td><xsl:value-of select="property"/></td>
      <td><xsl:value-of select="prvalue"/></td>
    <tr>
    <xsl:for-each select="key('property',property)[
      generate-id()=generate-id(key('user_id',
         concat(property,':',user_id))[1])">
      <tr>
        <td><xsl:value-of select="user_id"/></td>
        <td>
          <xsl:for-each select="key('user-id',
              concat(property,':',user_id))">
          <xsl:if test="position()!=last()>,</xsl:if>
        </td>
     </tr>
    </xsl:for-each>
  </xsl:for-each>
(caution: untested)