Subject: Re: Alternating table row colors with recursion From: "Steve Muench" <Steve.Muench@xxxxxxxxxx> Date: Tue, 28 Nov 2000 11:37:52 -0800 |
I recently had a similar problem whose solution worked for me, but is not necessarily the most performant option available. It might get some other thoughts spinning though so here goes... I have a requirements document like this: <reqs> <req title="ta"> <req title="xy"/> <req title="zz"> <req title="pp"/> </req> </req> <req title="qq"> <req title="bb"> <req title="mm"/> <req title="jj"/> </req> <req title="ww"/> </req> </reqs> Which I wanted to print out with a global-alternating row colors for rows like: Color Text ----- --------------------------- [0] 1. ta [1] 1.1 xy [0] 1.2 zz [1] 1.2.1 pp [0] 2. qq [1] 2.1 bb [0] 2.1.1 mm [1] 2.1.2 jj [0] 2.2 ww I didn't want the coloring to *restart* with each subnode's children list. I used a brute-force approach of doing: <xsl:variable name="global-position" select="count(preceding::req) + count(ancestor::req) + 1"/> which gave me the overall effective linear "row number" regardless of the level of the tree, and then I used the standard: <tr class="c{$global-position mod 2}"> to create <table> rows whose CSS class name alternates between "c0" and "c1" for the even and odd colors. This counting approach was just what I thought of, but you might also use the output of <xsl:number> for the current <req> and do some kind of calculation on the "2.1.2" value to derive the relative row number without counting again (but I haven't thought that one through yet) ______________________________________________________________ Steve Muench, Lead XML Evangelist & Consulting Product Manager BC4J & XSQL Servlet Development Teams, Oracle Rep to XSL WG Author "Building Oracle XML Applications", O'Reilly http://www.oreilly.com/catalog/orxmlapp/ XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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