Subject: RE: [xsl] using a variable in sort block From: "Michael Kay" <mhk@xxxxxxxxx> Date: Wed, 16 Jul 2003 17:06:09 +0100 |
Didn't we have the same question on the list a week or two ago? I can't see anything illegal in your stylesheet, there is rule against using a result tree fragment in a sort key. This sounds like a non-conformance in your XSLT processor. On the other hand, what you are trying to do is pointless. If you define a sortkey with select="$x", then whatever the value of $x, it will be the same for all the items you are sorting, so there is no point in sorting them. You are imagining, of course, that it does select="dyn:evaluate($x)" - but it doesn't. Michael Kay > -----Original Message----- > From: owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx > [mailto:owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of > Greg Johnson > Sent: 15 July 2003 18:52 > To: XSL-List@xxxxxxxxxxxxxxxxxxxxxx > Subject: [xsl] using a variable in sort block > > > What are the restrictions on using xsl:variables? > Am I not allowed to use it in an xsl:sort element? > I get the following error for the folowing xsl fragment: > > <xsl:variable name="sortby">ARRIVED</xsl:variable> > <xsl:variable name="sortorder">descending</xsl:variable> > > <xsl:template match="REPORT"> > <h1> > <xsl:value-of select="$sortby"/> > </h1> > <xsl:apply-templates select="INTERCHANGE"> > <xsl:sort select="{$sortby}" order="{$sortorder}" /> > <!-- ERROR HERE --> </xsl:apply-templates> </xsl:template> > > ---- > > Error in XPath Expression: Cannot use result tree fragment. > > ---- > > The <xsl:value-of select="$sortby"/> outputs "ARRIVED" > correctly, but dies inside the "sort" element. > > > > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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