Subject: Re: [xsl] Displaying Unique attribute value From: "Ganesh Babu N" <nbabuganesh@xxxxxxxxx> Date: Sat, 4 Oct 2008 09:32:27 +0530 |
Dear David, I have used your statements as follows: <xsl:key name="page" match="*[@page-num]" use="@page-num"/> <xsl:template match="/"> <h1><xsl:if test="generate-id(.)=generate-id(key('page',@page-num)[1])"><xsl:value-of select="generate-id(key('page',@page-num)[1])"/></xsl:if></h1> </xsl:apply-templates/> </xsl:template> but I am unable to get the result in <h1> tag. Please help me. Regards, Ganesh On 10/3/08, David Carlisle <davidc@xxxxxxxxx> wrote: > > muenchian grouping is your friend. > > add > > <xsl:key name="page" match="*[@page-num]" use="@page-num"/> > > then to test if the current node is the first node with a given page-num > you just need > > <xsl:if test="generate-id(.)=generate-id(key('page',@page-num)[1])"> > ... > > as the key will return all the nodes with the current page-num, and the > generate-id test tests that the current node is the first of those in > document order. > > To comment on your posted code > > <xsl:template match="/"> > <xsl:for-each select="@page-num"> > > / is the document root so has no attributes so this is iterating over > the empty node set and will therefore do nothing. > > You could change it to <xsl:for-each select="//*@page-num"> but the > above key is likely to be a lot more efficient than building a list of > unique pages before starting. > > David > > ________________________________________________________________________ > The Numerical Algorithms Group Ltd is a company registered in England > and Wales with company number 1249803. The registered office is: > Wilkinson House, Jordan Hill Road, Oxford OX2 8DR, United Kingdom. > > This e-mail has been scanned for all viruses by Star. The service is > powered by MessageLabs. > ________________________________________________________________________
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