Please see,

http://www.dpawson.co.uk/xsl/sect2/bool.html#d3065e16

Please read the last line of this FAQ point, "Result tree fragments
are true because they always contain a 'root' node."

On Sat, Sep 27, 2008 at 7:00 AM, David Frey <dpfrey@xxxxxxx> wrote:
> I have an XSLT 1 question.
>
> Say I have:
>
> <xsl:variable name="foo">
>  <xsl:choose>
>    <xsl:when test="$aVar='someFlag'">
>      <xsl:value-of select="/path/to/some/element"/>
>    </xsl:when>
>    <xsl:otherwise>
>      <xsl:value-of select="/path/to/another/element"/>
>    </xsl:otherwise>
> </xsl:variable>
> <xsl:choose>
>  <xsl:when test="$foo">
>    <xsl:value-of select="$foo"/>
>  </xsl:when>
>  <xsl:otherwise>--</xsl:otherwise>
> </xsl:choose>
>
>
>
> Currently, I never get "--" as my output even if $aVar is set to
> 'someFlag' and the element at "/path/to/some/element" does not exist.
>
> Can someone explain where I went wrong?
>
> Thanks,
> David


-- 
Regards,
Mukul Gandhi