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brett luntzSubject: Comparing an XML value from current record and previous record
Author: brett luntz
Date: 10 May 2007 10:40 AM
Hi,

I am new to XSL and have some code that I need edited.

We are currently looping through an XML recordset.

We need an if statement that checks the current and
previous record's value of the XML tag
"HORSE_FRONT_ROW_FLAG". If the current record's value
of HORSE_FRONT_ROW_FLAG tag is "2", and the previous
record's value of HORSE_FRONT_ROW_FLAG is "1", then
the system needs to print some text....

This is the current code:

<xsl:for-each select="RACE_LIST_HORSES/HORSE">
<section startonnewpage="false" pagesize="a5"
leftmargin="1cm" rightmargin="1cm" topmargin="1cm"
bottommargin="1cm">
<paragraph
type="textparagraph" alignment="center">
<fragment
font="Helvetica" fontsize="10">
------------------------------------------------
Second Row
------------------------------------------------</fragment>
</paragraph>
</section>
The current code is below.
xsl:for-each select="RACE_LIST_HORSES/HORSE">
<section
startonnewpage="false" pagesize="a5" leftmargin="1cm"
rightmargin="1cm" topmargin="1cm" bottommargin="1cm">

</section>

</xsl:for-each>


Here is the pseudocode for what I need implemented...



<xsl:for-each select="RACE_LIST_HORSES/HORSE">
<section
startonnewpage="false" pagesize="a5" leftmargin="1cm"
rightmargin="1cm" topmargin="1cm" bottommargin="1cm">

<if current Record's value for
RACE_LIST_HORSES/HORSE/HORSE_FRONT_ROW_FLAG = 2>
<if previous record's
value for RACE_LIST_HORSES/HORSE/HORSE_FRONT_ROW_FLAG
= 1>
<section startonnewpage="false" pagesize="a5"
leftmargin="1cm" rightmargin="1cm" topmargin="1cm"
bottommargin="1cm">
<paragraph
type="textparagraph" alignment="center">
<fragment
font="Helvetica" fontsize="10">
------------------------------------------------
Second Row
------------------------------------------------</fragment>
</paragraph>
</section>
<end if>
<end if>

</section>

</xsl:for-each>

From what I've read you need to use preceding for the
previous record only, but I have no idea how to
implement it within the if statement.

Any help would be greatly appreciated
Posttop
Elias HuterSubject: Comparing an XML value from current record and previous record
Author: Elias Huter
Date: 11 May 2007 04:27 AM
Hi,

thats how I would do it:

<xsl:if test="HORSE_FRONT_ROW_FLAG = '2'">
<xsl:variable name="pre_pos" select="number(position())-1"/>
<xsl:if test="(../HORSE/HORSE_FRONT_ROW_FLAG)[$pre_pos]='1'">
<Text>Some Text</Text>
</xsl:if>
</xsl:if>
   
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