Html XSLT 中的嵌套 for-each 循环不起作用
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Nested for-each loops in XSLT not working
提问by user3614312
I cant seem to get this nested for loop to work correctly, I want to print all of the tracks on the EP in the row with the EP name and other details. Everything from the first for-each loop displays correctly but nothing is pulled through for the for-each loop to get the tracks.
我似乎无法让这个嵌套的 for 循环正常工作，我想用 EP 名称和其他详细信息在行中打印 EP 上的所有曲目。第一个 for-each 循环中的所有内容都正确显示，但没有为 for-each 循环拉取任何内容来获取曲目。
Here is my XML
这是我的 XML
<dalehoward>
<ep>
<name>Letters EP</name>
<year>2012</year>
<label>Static Audio</label>
<image>letters.jpg</image>
<tracks>
<track number="1">
<tname>Letters</tname>
<length>6.35</length>
</track>
<track number="2">
<tname>Later</tname>
<length>7.56</length>
</track>
<track number="3">
<tname>'89 Flava</tname>
<length>7:38</length>
</track>
<track number="4">
<tname>Safe Presentation</tname>
<length>7.55</length>
</track>
</tracks>
</ep>
<ep>
<name>Inner City EP</name>
<year>2012</year>
<label>Lost My Dog</label>
<image>innercity.jpg</image>
<tracks>
<track number="1">
<tname>C'Mon</tname>
<length>7.15</length>
</track>
<track number="2">
<tname>Koppabird</tname>
<length>6.27</length>
</track>
<track number="3">
<tname>Inner City</tname>
<length>8:50</length>
</track>
<track number="4">
<tname>You Can</tname>
<length>8:16</length>
</track>
<tracks>
</ep>
<dalehoward>
and here is the XSLT
这是 XSLT
<xsl:variable name="imagefolder" select="'xml/images/'" />
<xsl:template match="/">
<html>
<body>
<h2>My CD Collection</h2>
<table border="1" width="100%">
<tr bgcolor="#9acd32">
<th style="text-align:left">Title</th>
<th style="text-align:left">Year</th>
<th style="text-align:left">Label</th>
<th style="text-align:left">Tracks</th>
<th style="text-align:left">Artwork</th>
</tr>
<xsl:for-each select="dalehoward/ep">
<tr>
<td><xsl:value-of select="name"/></td>
<td><xsl:value-of select="year"/></td>
<td><xsl:value-of select="label"/></td>
<td>testtext<xsl:for-each select="dalehoward/ep/tracks">
<xsl:value-of select="tname"/><br />
<xsl:value-of select="length"/> <br /><br />
</xsl:for-each></td>
<td><img width="150px" height="150px"><xsl:attribute name="src">
<xsl:copy-of select="$imagefolder"/>
<xsl:value-of select="image"/>
</xsl:attribute></img></td>
</tr>
</xsl:for-each>
</table>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
Thanks a lot in advance for any help
非常感谢您的帮助
回答by michael.hor257k
The outer loop puts you in the context of ep. The context of the inner loop needs to be established from there (or as an absolute path, starting from the root) - so change:
外循环将您置于ep. 需要从那里建立内部循环的上下文（或作为绝对路径，从根开始） - 所以改变：
<xsl:for-each select="dalehoward/ep/tracks">
to:
到：
<xsl:for-each select="tracks/track">
