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Old August 1st, 2005, 02:02 PM
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Default Doing addition on Unique Id's

I have got part of the problem working, but summation seems to be going wrong. I am getting the counts( no of books sold), but when I am trying to add them it just gets concatenated. Please help me on this issue. Thanks

Required Output:
JavaScript 64
Photoshop 6

Current Output:
JavaScript 2359
Photoshop 6


<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="stylesheet10.xsl"?>


<?xml version='1.0' encoding='utf-8' ?>
<xsl:stylesheet version="1.0"

<xsl:key name="kbook" match="book" use="title"/>
<xsl:key name="crount" match="book" use="counts"/>

         <xsl:template match="/">
             <xsl:apply-templates select="node()|@*"/>

   <xsl:template match="book">
    <xsl:if test="generate-id()=generate-id(key('kbook',title)[1])">
                <xsl:value-of select="title"/>

          <xsl:for-each select="key('kbook', title)">
            <xsl:value-of select="sum(counts)"/>


     <xsl:template match="text()"/>


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Old August 1st, 2005, 02:45 PM
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<xsl:for-each select="key('kbook', title)">
            <xsl:value-of select="sum(counts)"/>

says "for each of the books with this title, add up all the <counts> elements for this book and output the total. There's only one <counts> for each book, so that's the value you get.

What you want is a single value, not one for each book:

<xsl:value-of select="key('kbook', title)/counts"/>

Michael Kay
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference

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