XSLT issue with testing for numbers

[tshad]

I have the following in my XSLT sheet that test for a number that doesn't work.

If I do:

<xsl:choose>
<xsl:when test="number('j') = 'NaN'">
0
</xsl:when>
<xsltherwise>
<xsl:value-of select="substring(name(),7,1) - 1"/>
</xsltherwise>
</xsl:choose>

I have a break on the "0" and the select and no matter what I put in the number() function as a paramter it always takes the otherwise path.

Why doesn't it work?

Thanks,

Tom

 

[Rhys666]

Have you tried;

<xsl:choose>
    <xsl:when test="string(number('j'))='NaN'">0</xsl:when>
    <xsl:otherwise>
        <xsl:value-of select="substring(name(),7,1) - 1"/>
    </xsl:otherwise>
</xsl:choose>

...or putting the value in a variable?

<xsl:variable name="Value.To.Test" select="J"/>
<xsl:choose>
    <xsl:when test="string(number($Value.To.Test))='NaN'">0</xsl:when>
    <xsl:otherwise>
        <xsl:value-of select="substring(name(),7,1) - 1"/>
    </xsl:otherwise>
</xsl:choose>

Rhys

"The trouble with having an open mind, of course, is that people will insist on coming along and trying to put things in it"
Terry Pratchett