Subject: [xsl] Dynamically controlling sort order based on values in the XML From: "Steve W" <lsl@xxxxxxxxxxxxx> Date: Fri, 3 Jun 2005 10:27:37 +0100 |
I have some xml that looks like : <DISPLAY> <CONFIG> <COL> <ID>ColA</ID> <ORDERBY DIRECTION="ASC">1</ORDERBY> </COL> <COL> <ID>ColB</ID> <ORDERBY DIRECTION="DSC">2</ORDERBY> </COL> </CONFIG> <DATA> <ROW> <COL ID="ColA"> <VALUE>BBB</VALUE> </COL> <COL ID="ColB"> <VALUE>111</VALUE> </COL> </ROW> <ROW> <COL ID="ColA"> <VALUE>CCC</VALUE> </COL> <COL ID="ColB"> <VALUE>333</VALUE> </COL> </ROW> <ROW> <COL ID="ColA"> <VALUE>AAA</VALUE> </COL> <COL ID="ColB"> <VALUE>222</VALUE> </COL> </ROW> </DATA> </DISPLAY> I have a stylesheet that outputs the data sorted by the element in CONFIG where COL/ORDERBY/text() is 1, which looks like : <xsl:template match="DISPLAY"> <xsl:variable name="sort_col" select="CONFIG/COL[ORDERBY/text()='1']/ID/text()" /> <xsl:apply-templates select="DATA/ROW" mode="do_data"> <xsl:sort select="COL[@ID=$sort_col]/VALUE/text()" /> </xsl:apply-templates> </xsl:template> <xsl:template match="ROW" mode="do_data"> <xsl:value-of select="COL[@ID='ColA']/VALUE/text()" />, <xsl:value-of select="COL[@ID='ColB']/VALUE/text()" /> <br /> </xsl:template> This gives me : AAA, 222 BBB, 111 CCC, 333 I need to be able to sort the data based on the CONFIG element of the XML and I don't know ahead of time how many columns there are going to be in the dataset and how many of them I will need to sort by. Can anyone suggest a way to achive this ? Thanks Steve
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