Hi Guys,

I am new to this forum and to XSLT but I was hoping that maybe someone may be able to tell me what I am doing wrong in my recursive template.

I am using recursion to try to increment a parameter but for some reason the parameter never gets incremented when i use this for-each loop setup. To be honest I don't think the recursive call is working at all, it simply shows the page break text and skips the recursive call from what I can make out.

If you look at a sample of my xml document below I want to loop through all the "Security" nodes and process all the nodes with the same "PortfolioID". When I hit a different PortfolioID in the for-each loop I want to add a page break, increment the parameter and recursively call the template again to process all the "Securities" with the next "PortfolioID".

Below is the template in question:

  <xsl:template name="runBody">
    <xsl:param name="currentPortfolio"/>
    <xsl:for-each select="NewDataSet/Security">
    <xsl:if test="number(.//PortfolioID)!=number($currentPortfolio)">

        ########### I WILL PUT A PAGE BREAK HERE ###################

        <xsl:call-template name="runBody">
           <xsl:with-param name="currentPortfolio"select="$currentPortfolio + 1"/>
        </xsl:call-template>
      </xsl:if>
      <xsl:call-template name="MainBody"/>
    </xsl:for-each>
  </xsl:template>


A small sample of my .xml document is as follows:

- <NewDataSet>
- <Security>
  <PortfolioID>1</PortfolioID>
  <Quantity>183.84</Quantity>
  <FirstName>James</FirstName>
  <LastName>Carter</LastName>
  <Description>Stone Money Market</Description>
  <SecurityID>20</SecurityID>
  </Security>
- <Security>
  <PortfolioID>1</PortfolioID>
  <Quantity>623.08</Quantity>
  <FirstName>James</FirstName>
  <LastName>Carter</LastName>
  <Description>Vantage Bond Index Fund</Description>
  <SecurityID>24</SecurityID>
  </Security>
- <Security>
  <PortfolioID>1</PortfolioID>
  <Quantity>605.358</Quantity>
  <FirstName>James</FirstName>
  <LastName>Carter</LastName>
  <Description>Pimco Total Return Fund</Description>
  <SecurityID>25</SecurityID>
  </Security>
- <Security>
  <PortfolioID>1</PortfolioID>
  <Quantity>454.295</Quantity>
  <FirstName>James</FirstName>
  <LastName>Carter</LastName>
  <Description>Montgomery Equity Income</Description>
  <SecurityID>26</SecurityID>
  </Security>
- <Security>
  <PortfolioID>2</PortfolioID>
  <Quantity>1147.6</Quantity>
  <FirstName>Kathleen</FirstName>
  <LastName>Carter</LastName>
  <Description>Stone Money Market</Description>
  <SecurityID>20</SecurityID>
  </Security>
- <Security>
  <PortfolioID>2</PortfolioID>
  <Quantity>706.667</Quantity>
  <FirstName>Kathleen</FirstName>
  <LastName>Carter</LastName>
  <Description>Pimco Total Return Fund</Description>
  <SecurityID>25</SecurityID>
  </Security>


Thanks in advance for any advice, comments or help you can give me.

Kind regards,

Trevor.

When you do

<xsl:for-each select="NewDataSet/Security">

you change the context node to be a Security element. So in your recursive call, "." is a Security element, and you then select <xsl:for-each select="NewDataSet/Security">. As far as I can see no Security element in your data has a child called NewDataSet.

Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference

So how would I go about fixing the problem?

I don't actually understand why you need recursion here at all. Just process all the records in a normal loop and output the page break if PortfolioId != preceding-sibling::*[1]/PortfolioId. But perhaps I haven't understood your problem

Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference

Thanks Michael that worked perfectly! I was obviously barking up the wrong tree with recursion.

I don't suppose you know an easy way of adding a page break do you? I have been looking through your book which I have here but can't seem to find anything in there or on the net.

>I don't suppose you know an easy way of adding a page break do you?

I don't know what your target vocabulary is. It it's HTML, I don't think HTML has any concept of pages or page breaks. If it's XSL-FO, or RTF, or OpenOffice, or something else, then you need to ask someone who understands that vocabulary.



Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference