Looking back at the thread, it seems that no-one has given you the most
basic information - probably because we see it said so often on this list
that we forget there are people who haven't heard it: YOU CANNOT UPDATE
VARIABLES IN XSLT.
Everyone who has responded to you has hinted at this, by showing you
solutions that don't involve updating variables, but I don't think anyone
said it directly.
In your match="Lists" template you have a variable called $index whose value
is 0. This template calls the named template with name="formatTitle",
specifying
<xsl:with-param name="$index" select="$index+1"/>
The $index in the name attribute refers to a local parameter in the
formatTitle template, while the $index in the select attribute refers to the
variable in the calling match="Lists" template. They are unrelated
variables, so let's change their names to make it clearer:
<xsl:with-param name="$index-B" select="$index-A + 1"/>
$index-A is always 0. Therefore $index-B is always 1.
I hope this explains to you why your code isn't working. It doesn't solve
your problem - but as regulars on this list will know, I often try to help
people understand their problems but I very rarely write substantial chunks
of code for them.
Michael Kay
http://www.saxonica.com/
-----Original Message-----
From: que Li [mailto:queincanada(_at_)yahoo(_dot_)ca]
Sent: 30 November 2004 18:29
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: [xsl] Please help Problem for : increment a variable
in a for-each?
Hi all:
I got so many peopel help but I can't get solution
for my problem yet. I need fix it asap so please help
me ! question is : How I can find relatiove position
on the node which satify the condition ? I try to set
the variable called index and increment index value
when I call template but the index value is always 1
I work on this problems for several days, I wish I can
get help for solution.
Thanks
xml file:
<Lists>
<List >
<List_ID>10</List_ID>
<Title>A</Title>
<Parent_ID>1</Parent_ID>
</List>
<List>
<List_ID>11</List_ID>
<Title>A1</Title>
<Parent_ID>10</Parent_ID>
</List>
<List >
<List_ID>12</List_ID>
<Title>B</Title>
<Parent_ID>20</Parent_ID>
</List>
<List >
<List_ID>13</List_ID>
<Title>A2</Title>
<Parent_ID>10</Parent_ID>
</List>
<List >
<List_ID>14</List_ID>
<Title>C</Title>
<Parent_ID>1</Parent_ID>
</List>
</Lists>
xsl:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; >
<xsl:template match="Lists" >
<xsl:apply-templates>
<xsl:with-param name="ValidCount"
select="number(count(List)-count(List[Parent_ID=../List/List_ID]))"/>
</xsl:apply-templates>
</xsl:template>
<xsl:template match="List">
<xsl:param name="ValidCount"/>
<xsl:variable name="self" select="."/>
<xsl:variable name="index" select="0"/>
<xsl:choose>
<xsl:when test="Parent_ID=1 or
not(preceding-sibling::List[List_ID = $self/Parent_ID]
or following-sibling::List[List_ID =
$self/Parent_ID])">
<xsl:call-template name="formatTitle">
<xsl:with-param name="index" select="$index+1"/>
<xsl:with-param name="TotalCount"
select="$ValidCount"/>
<xsl:with-param name="Title" select="Title"/>
</xsl:call-template>
<xsl:call-template name="findChildNode">
<xsl:with-param name="ParentID" select="List_ID"/>
</xsl:call-template>
</xsl:when>
</xsl:choose>
</xsl:template>
<xsl:template name="findChildNode">
....this part work
</xsl:template>
<xsl:template name="formatTitle">
<xsl:param name="index" />
<xsl:param name="TotalCount"/>
index: <xsl:value-of select="$index"/>
<xsl:param name="Title"/>
<xsl:choose>
<xsl:when test="$TotalCount=1 or $index=1">
<b><xsl:value-of select="$Title"/></b>
</xsl:when>
<xsl:when
test="$index = $TotalCount -1">
<b> and
<xsl:value-of select="$Title"/></b>
</xsl:when>
<xsl:when
test="$index = $TotalCount">
<b>
<xsl:value-of select="$Title"/></b>
</xsl:when>
<xsl:otherwise>
<b>;
<xsl:value-of select="$Title"/></b>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
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