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Brian PSubject: how to use call-template result in a test?
Author: Brian P
Date: 10 Feb 2006 03:58 PM
I'd like to call a template and then use the result in a test. I'm trying to make a change from this:

<xsl:if test="boolean(/Amt)">
<xsl:element name="DamageAmt">
<xsl:call-template name="convertCurrency">
<xsl:with-param name="currency" select="/Amt">
</xsl:with-param>
</xsl:call-template>
</xsl:element>
</xsl:if>

The convertCurrency template basically just strips out non-numeric characters. I'd like to use the result of that in the 'if test' clause so that if there is no non-numeric data left, the <DamageAmt> element is not output at all. As it stands now, it can create an empty <DamageAmt> element, which errors out because the xsd states that if the element is there, it can't be empty.

I inherited maintenance of this and my knowledge of XSLT is very patchy. I can kind of follow what it's doing and make minor changes but can't figure out how to do something new and different like this.

Thanks
Posttop
(Deleted User) Subject: how to use call-template result in a test?
Author: (Deleted User)
Date: 10 Feb 2006 04:18 PM
Hi, Brian. You can assign a variable value based on the result of a template (or other XSLT) and then use that variable in your tests, like this:

<xsl:variable name="convertedCurrency">
<xsl:call-template name="convertCurrency">
<xsl:with-param name="currency" select="/Amt">
</xsl:with-param>
</xsl:call-template>
</xsl:variable>
<xsl:if test="$convertedCurrency">
<xsl:element name="DamageAmt">
<xsl:value-of select="$convertedCurrency"/>
</xsl:element>
</xsl:if>

Mulberry Tech's XSLT forum is another great resource for questions about XSLT usage:

http://www.mulberrytech.com/xsl/xsl-list/index.html

David Foster
Stylus Studio Team

   
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