Re: Sorting based on a calculated set of values

Hi Andrew,

> And my out put is an HTML table table with four columns:
> Col 1: the item id
> Col 2: the a value
> Col 3: the b value
> Col 4: the product of a and b
>
> Can I sort my output by the fourth column? I know how to sort by the
> item id, a, or b, but don't know what I need to do to properly
> address the calculated value "column".

You can sort by any expression you like by putting it in the select
attribute of xsl:sort. In this case you need:

  <xsl:for-each select="item">
    <xsl:sort select="a * b" data-type="number" />
    <tr>
      <td><xsl:value-of select="@id" /></td>
      <td><xsl:value-of select="a" /></td>
      <td><xsl:value-of select="b" /></td>
      <td><xsl:value-of select="a * b" /></td>
    </tr>
  </xsl:for-each>

Cheers,

Jeni

---
Jeni Tennison
http://www.jenitennison.com/


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