[going back on list]
As I said, I am unable to use
as posted I get:
$ saxon filter.xml filter.xsl
Error at xsl:for-each on line 17 of file:/c:/tmp/filter.xsl:
Key 'by-info' has not been defined
Transformation failed: Run-time errors were reported
taking
<xsl:key name="by-info" match="Article" use="@info"/>
from an earlier post and adding it after xsl:stylesheet, I get:
$ saxon filter.xml filter.xsl
<?xml version="1.0" encoding="utf-8"?>
<Documents>
<Document name="sub">
<Article title="1.1" info="sub" filter="food"/>
</Document>
<Document name="main">
<Article title="2.2" info="main" filter="food"/>
</Document>
</Documents>
That is, apart from droping your key definintion, the code you posted
works as expected. So if you really get
"Exception Details: System.NullReferenceException: Object reference not set
to an instance of an object." in myXslTrans.Transform(myXPathDoc, null,
writer, null);
looks like a bug in your processor (Microsoft .net implementation?)
David
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