Subject: Re: [xsl] understanding key usage From: David Carlisle <davidc@xxxxxxxxx> Date: Mon, 22 Nov 2004 12:34:43 GMT |
Hi, is there a difference between the following? <xsl:key name="dkey" match="B" use="key"/> <xsl:for-each select="value/B[generate-id()= generate-id(key('dkey','USD')[1])]"> and <xsl:for-each select="value/dovizler[key='USD']"> in my opinion, both of these correspod to B elements whose 'key' values are equal to 'USD'. any ideas? regards. They are very different. For example: The first one selects B elements and the second one selects dovizler elements. The first one selects at most one node. If there is a value child of the current node that has a B child, and that B child is the first B element in the current document to have a key with value USD then that B element is selected, otherwise the empty set is returned. The second one selects all dovizler children of value children of teh currentnode that have a key child with value USD. David ________________________________________________________________________ This e-mail has been scanned for all viruses by Star. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________
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