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Summing computed values
- To: "'XSL-List at lists dot mulberrytech dot com'" <XSL-List at lists dot mulberrytech dot com>
- Subject: [xsl] Summing computed values
- From: Lorenzo De Sio <l dot desio at w4b dot it>
- Date: Wed, 10 Jan 2001 16:46:04 +0100
- Reply-To: xsl-list at lists dot mulberrytech dot com
Hi,
Is anyone able to figure a way to sum computed values?
I am facing a quite classical problem:
given this XML:
<cart>
<item>
<id>70028</id>
<desc>Article 70028</desc>
<price>4.8</price>
<qty>5</qty>
</item>
<item>
<id>70010</id>
<desc>Article 70010</desc>
<price>17.6</price>
<qty>12</qty>
</item>
</cart>
I would like to calculate the total due :-)
While expressions such as
<xsl:value-of select="sum(//cart/item/qty)"/>
and
<xsl:value-of select="sum(//cart/item/price)"/>
obviously work as expected,
expressions such as
<xsl:value-of select="sum(//cart/item/price * qty)"/>
<xsl:value-of select="sum(//cart/item/price * //cart/item/qty)"/>
obviously don't work, since sum expects a node-list.
I've tried other approaches, such as using <xsl:param>, but I only got more
confused. Has anyone got any idea?
L.
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