Subject: Re: [xsl] Sum produces NaN From: "cking" <cking@xxxxxxxxxx> Date: Mon, 13 Sep 2004 20:24:51 +0200 |
Hi James, I'm not sure why you use named templates, can't you just say <xsl:value-of select="sum(a/b/data)"/> ? That would give you the sum of all <data> records, but indeed returns NaN if one of them is empty. To solve this, you can narrow your selection to those <data> elements whose content is not empty: <xsl:value-of select="sum(a/b/data[.!=''])"/> or <xsl:value-of select="sum(a/b/data[text()])"/> That should return "8" for your input HTH Anton Triest James Steven wrote: > > Hello > To add a column of numbers I am using the xsl below. However if there is > one value missing in the column then the xsl produces NaN. > > eg. Below is xml with a value missing in last <data>. I then use the xsl > below to add all <data> values but receive NaN because of the missing value. > If all <data> tags have value then the sum works. Please could anyone show > how to resolve this. Any help greatly appreciated. > > <a> > <b> > <data>1</data> > </b> > <b> > <data>2</data> > </b> > <b> > <data>5</data> > </b> > <b> > <data></data> > </b> > </a> > > > <xsl:template name="orderlist.sum.edit"> > <xsl:param name="set-of-order"/> > <xsl:variable name="sumorg"> > <xsl:call-template name="orderlist.sum"> > <xsl:with-param name="set-of-order" select="$set-of-order"/> > </xsl:call-template> > </xsl:variable> > <xsl:value-of select='format-number($sumorg, "####,###,##0.00")'/> > </xsl:template> > > <xsl:template name="orderlist.sum"> > <xsl:param name="set-of-order"/> > <xsl:choose> > <xsl:when test="$set-of-order"> > <xsl:variable name="first"> > <xsl:apply-templates select="$set-of-order[1]/data"/> > </xsl:variable> > <xsl:variable name="rest"> > <xsl:call-template name="orderlist.sum"> > <xsl:with-param name="set-of-order" select="$set-of-order[position() > != 1]"/> > </xsl:call-template> > </xsl:variable> > <xsl:value-of select="$first + $rest"/> > </xsl:when> > <xsl:otherwise>0</xsl:otherwise> > </xsl:choose> > </xsl:template>
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