Subject: Re: [xsl] for-each-group group-by existing and non-existing attribute From: David Carlisle <davidc@xxxxxxxxx> Date: Mon, 28 Apr 2008 23:44:52 +0100 |
> but how does the group-by determine the correct groups? How does it work internally? I don't know, it's probably a pile of Java that does something with hash tables, ask Michael:-) > How does it know there is no value to do the grouping? There always is a value. The grouping is not (directly) on the attribute value (which may not be there) but on the string value of the expression, which always (in this case) has a non empty value, the value returned by current-grouping-key() and displayed in your condition= attribute. 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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