RE: Scope of variable defined in <xsl:choose>

Hi Tim,

For your first example you have declared the variable 'numberdisplayed' within the when and within the otherwise. Therefore, it is out of scope when you try to select its value after the choose.

One solution I've seen around (Check out http://www.dpawson.co.uk/xsl/xslfaq.html for heaps of great XSLT examples) is to use:

<xsl:variable name="numberdisplayed">
	<xsl:choose>
		<xsl:when test="data/merchant/customer">
			<xsl:value-of select="count(data/merchant/customer)" />
		</xsl:when>
		<xsl:otherwise>
			<xsl:value-of select="count(data/merchant/orders)" />
		</xsl:otherwise>
	</xsl:choose>
</xsl:variable>

This will set the variable based on the choose, ready for later use.

Cheers,
Joshua

> I can't understand this error message
> 
> > Error [code:222] [node:
> > element '<xsl:value-of>']
> >   variable not found
> > search/search - text/html
> 
> for the following code:
> 
> > <xsl:choose>
> >	<xsl:when test="data/merchant/customer">
> >		<xsl:variable name="numberdisplayed"><xsl:value-of
> select="count(data/merchant/customer)" /></xsl:variable>
> >	</xsl:when>
> >	<xsl:otherwise>
> >		<xsl:variable name="numberdisplayed"><xsl:value-of
> select="count(data/merchant/orders)" /></xsl:variable>
> >	</xsl:otherwise>
> > </xsl:choose>
> > <xsl:value-of select="$numberdisplayed" />
> 
> The variable has just been defined, but it can't be used 
> outside of the
> <xsl:choose>
> 
> Yet, if I have
> 
> > <xsl:choose>
> >	<xsl:when test="/document/data/merchant/customer">
> >		<xsl:variable name="numberdisplayed"><xsl:value-of
> select="count(/document/data/merchant/customer)" />
> > </xsl:variable>
> >		<xsl:value-of select="$numberdisplayed" />
> >	</xsl:when>
> >	<xsl:otherwise>
> >		<xsl:variable name="numberdisplayed"><xsl:value-of
> select="count(/document/data/merchant/orders)" />
> > </xsl:variable>
> >		<xsl:value-of select="$numberdisplayed" />
> >	</xsl:otherwise>
> > </xsl:choose>
> 
> the output is displayed.
> 
> How can the variable be used throughout the scope of the 
> template it has
> been defined in?
> 
> Thanks,
> 
> Tim Watts
> 
> PS. Am using Sablotron 0.51.
> 
> 
> 
> 
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
> 
> 

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