RE: Summing a Calculation

This works:

<xsl:template match="order">
    <b>
      <xsl:text>Total Price: </xsl:text>
      <xsl:value-of select="sum(item/price)"/>
    </b>
</xsl:template>

-----Original Message-----
From: Mark Swardstrom [mailto:mark@xxxxxxxxxx]
Sent: Thursday, June 21, 2001 11:55 AM
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject:  Summing a Calculation


I'm trying to get the sum of a purchase order, which seems simple, but I
can't find an easy solution.

Consider the following XML:

<order>
	<item>
		<id>1</id>
		<price>1.34</price>
		<quantity>4</quantity>
	</item>
	<item>
		<id>2</id>
		<price>5.77</price>
		<quantity>3</quantity>
	</item>
	<item>
		<id>5</id>
		<price>12.99</price>
		<quantity>1</quantity>
	</item>
</order>

I was trying to do something along these lines:

<xsl:template match="order">
	<xsl:apply-templates select="item"/>
	<b>Total price: <xsl:value-of select="sum(item/price *
item/quantity)"/></b>
</xsl:template>

To get a total amount for the entire order.

But that gives the following error.  

	Can not convert #NUMBER to a NodeList!

Before I go down the (seemingly too complex) recursive loop approach, I was
wondering if anyone else had another idea.

Thanks.

- Mark


 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list