Subject: [xsl] Switching off a filter by parameter From: "Guy" <guy@xxxxxxxxxxx> Date: Mon, 13 Nov 2006 12:42:21 -0500 |
I have the following snippet of XSL to filter a book collection by category: <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:param name="categor"/> <xsl:template match="/"> <xsl:for-each select="books/book"> <xsl:if test="category=$categor"> <!-- Show info... --> </xsl:if> </xsl:for-each> </xsl:template> </xsl:stylesheet> My question: If the categor param is zero length (i.e. no filter) then how do I test for this and allow all books through? In other words I would like the commented code in the snippet above to be executed if the categor param is not filled in. Thanks!
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