The variable named "parm" is a Result Tree Fragment and cannot be converted to an XSLT node-set. To get what you want, try
<xsl:variable name="parm" select="'books'" /> Note the inner quotes on the select attribute making books a string. For more info on this, see http://www.w3.org/TR/xslt#section-Result-Tree-Fragments and the following section. Gary > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, October 16, 2001 6:27 AM > To: [EMAIL PROTECTED] > Subject: variable in select do not work > > > Hi everybody, > I've a problem that I've reproduced with the following > stilesheet: The following works: > > <?xml version='1.0'?> > <xsl:stylesheet version="1.0" xmlns:xsl > ="http://www.w3.org/1999/XSL/Transform";> > > <xsl:template match="/"> > <xsl:apply-templates select="catalog"/> > </xsl:template> > > <xsl:template match="catalog"> > <xsl:variable name="books" select="book"/> > Number of books: <xsl:value-of select="count($books)"/> > </xsl:template> > > </xsl:stylesheet> > > the following give the error: Can not convert #RTREEFRAG to a > NodeList! > > <?xml version='1.0'?> > <xsl:stylesheet version="1.0" xmlns:xsl > ="http://www.w3.org/1999/XSL/Transform";> > > <xsl:variable name="parm">book</xsl:variable> > > <xsl:template match="/"> > <xsl:apply-templates select="catalog"/> > </xsl:template> > > <xsl:template match="catalog"> > <xsl:variable name="books" select="$parm"/> > Number of books: <xsl:value-of select="count($books)"/> > </xsl:template> > > </xsl:stylesheet> > > (See attached file: sample.xml) > > My real code take parm as parameter, but it gives the same > error. I was expecting that <xsl:variable name="books" > select="$parm"/> returned a nodset that I could pass to the > count() function, but I was wrong!! Any hint? > > thanks a lot Maria >
