Dongling,
Sorry, I just realized what the problem was.
Dongling had written:
Lars,
I works fine except for the following line:
<xsl:variable name="next-is-child" select=
"//hierarchy/node[parent = Label and child =
$next/Label]" />
The expression "parent = Label and child =
$next/Label" doesn't work.
I have to assign them to
variables first:
xsl:variable name="valueOfParent" select="Label"/>
<xsl:variable name="valueOfChild"
select="$next/Label"/>
The problem is I wasn't thinking straight about the context
node inside the [] predicate.
You could use instead:
<xsl:variable name="next-is-child" select=
"//hierarchy/node[parent = current()/Label and child =
$next/Label]" />
Or your method of using a variable for valueOfParent is fine too.
Lars
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