Subject: Why does this work? From: "Schmitt, Christian" <Christian.Schmitt@xxxxxxxxxxxxxxxxx> Date: Mon, 7 Aug 2000 18:27:28 +0200 |
Hi, I have this XML data: <rowset> <row> <customer>1</customer> <account>11</account> </row> <row> <customer>1</customer> <account>22</account> </row> <row> <customer>2</customer> <account>33</account> </row> <customer>2</customer> <account>44</account> </row> </rowset> I want to get output like this: <table> <tr> <td>1</td> <td>11</td> </tr> <tr> <td> </td> <td>22</td> </tr> <tr> <td>2</td> <td>33</td> </tr> <tr> <td> </td> <td>44</td> </tr> </table> I solved it with the following template (this assumes that the data is ordered by customer): <xsl:template match="row"> <xsl:choose> <xsl:when test="customer = preceding::row[position()=1]/customer"> <td> </td> </xsl:when> <xsl:otherwise> <td><xsl:value-of select="customer"/> </xsl:otherwise> </xsl:choose> <td><xsl:value-of select="account"/></td> </xsl:template> Now I'm glad it works, but for some peace of mind I would like to know why <xsl:when test="customer = preceding::row[position()=1]/customer"> behaves as it does? Thanks in advance, Christian Schmitt XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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