[xsl] Sum in a Grouping

[Linda <binky_35@xxxxxxxx>]

I am trying to sum a value in a group, in a cell, in a
table.  I am able to count the items and display only
the last one but I can't figure out how to sum the
numbers up.


XML snip:

<RECORD>
    <START_TIME>2001-06-19 09:00:07.0</START_TIME>
    <SHIPMENT_GID>WELKE.260</SHIPMENT_GID>
    <ORDER_RELEASE_GID>WELKE.ORDER BASE
ID-001</ORDER_RELEASE_GID>
   
<INVOLVED_PARTY_LOCATION_GID>CUSTOMER1.CUSTOMER1_SHIPFROM1</INVOLVED_PARTY_LOCATION_GID>
    <NET_AMOUNT_DUE>359.72</NET_AMOUNT_DUE>
    <CURRENCY_GID>CAD</CURRENCY_GID>
    <TOTAL_ACTUAL_COST>92.64</TOTAL_ACTUAL_COST>
   
<T_ACTUAL_COST_CURRENCY_GID>CAD</T_ACTUAL_COST_CURRENCY_GID>
    <TOTAL_ALLOC_COST>23.03</TOTAL_ALLOC_COST>
    <INVOICE_GID>WELKE.CB-20010710-0021</INVOICE_GID>
    <ORDER_BASE_GID>WELKE.ORDER BASE
ID</ORDER_BASE_GID>
</RECORD>

The count works like this:

<xsl:key name="records-by-party" match="RECORD"
use="INVOLVED_PARTY_LOCATION_GID"/>

<xsl:for-each select="RECORD[count(. |
key('records-by-party',
INVOLVED_PARTY_LOCATION_GID)[1]) = 1]">
							<hr/>
							<xsl:sort select="INVOLVED_PARTY_LOCATION_GID"
/><br />
							<br />
							<xsl:for-each select="key('records-by-party',
INVOLVED_PARTY_LOCATION_GID)">
							<xsl:sort select="START_TIME" />
							<xsl:choose>
							<xsl:when test='position()=last()'>
							<xsl:text>= </xsl:text><xsl:value-of
select="last()"/><br/>
							</xsl:when>
							<xsl:otherwise>
							<xsl:text>&#160;</xsl:text><br/>
							</xsl:otherwise>
							</xsl:choose>
							</xsl:for-each>
							</xsl:for-each>

Which displays nicely as:

=1

=8

=3

But I can't get the sum of the values in
'NET_AMOUNT_DUE', I keep getting each line in the
group displaying over again - or in this example case
- just the last one.

<xsl:for-each select="RECORD[count(. |
key('records-by-party',
INVOLVED_PARTY_LOCATION_GID)[1]) = 1]">
							<hr/>
							<xsl:sort select="INVOLVED_PARTY_LOCATION_GID"
/><br />
							<br />
							<xsl:for-each select="key('records-by-party',
INVOLVED_PARTY_LOCATION_GID)">
							<xsl:sort select="START_TIME" />
							<xsl:choose>
							<xsl:when test='position()=last()'>
							<xsl:text>= </xsl:text><xsl:value-of
select="NET_AMOUNT_DUE"/><br/>
							</xsl:when>
							<xsl:otherwise>
							<xsl:text>&#160;</xsl:text><br/>
							</xsl:otherwise>
							</xsl:choose>

							</xsl:for-each>
							</xsl:for-each> 

Please help, if you know!  I have exhausted all books
and web sites!

Thanks in advance.

Linda

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