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XSL Pass node-set to template

Posted on 2004-10-12
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Last Modified: 2011-11-09
WinXP, MSXML 4/.NET.

The basic goal is to pass a node set to a template (see below)
<?xml version="1.0" encoding="utf-8" ?>
<flights>
      <flight number="101" line="AQ" time="2004-05-17T11:12:00" type="A">
            <values field="gate">B12</values>
      </flight>
      <flight number="102" line="AQ" time="2004-05-17T12:12:00" type="D">
            <values field="gate">B12</values>
      </flight>
            <flight number="103" line="AQ" time="2004-05-17T13:12:00" type="A">
            <values field="gate">B12</values>
      </flight>
            <flight number="104" line="AQ" time="2004-05-17T14:12:00" type="D">
            <values field="gate">B12</values>
      </flight>
</flights>

--------------------------------------------------------------------------------------
Within 1 hour from now: (select only top 1 arrival/departure (type=A/D)where gate='B12')

If there are NO Arriving/Departing
      display "No Flights"
      
If Only Arriving
      Display "Flight (line + number) is Arriving..."
      
If Departing & Arriving
      Display "Flight (line + number) is Departing ..Flight (line + number) is Arriving"
                  
============================================================
What I'd like to do is use a departure template with an arrival node-set as a parameter.
Then when processing the departure node, use a template for the arrival processing. I *think* the msxsl:node-set function is what I need, but can't find the right answer on the web.

I have simplified both the XML and logic. There is a lot more going on in the
data selection and the presentation logic, but this should do.

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Question by:lrr81765
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1 Comment
 
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Accepted Solution

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J_Mak earned 1500 total points
ID: 12294359
A node-set parameter is basically a parameter which references more than one node. You can pass node-sets to templates using axes such as:

- ancestor
- ancestor-or-self
- attribute
- child
- descendant
- descendant-or-self
- following
- following-sibling
- namespace
- parent
- preceding
- preceding-sibling
- self

For example, you could something like this (it may not be what you want but it will use pass a node-set parameter to a template):

<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
    <!-- assuming you want to output an XML file -->
    <xsl:output method="xml"/>
    <xsl:template match="/">
        <xsl:apply-templates select="flights"/>
    </xsl:template>
    <xsl:template match="flights">
        <xsl:call-template name="ProcessChildren">
            <xsl:with-param name="Node_Set" select="./child::*"/>
        </xsl:call-template>
    </xsl:template>
    <xsl:template name="ProcessChildren">
        <xsl:param name="Node_Set"/>
        <xsl:value-of select="count($Node_Set[@type='A'])"/>
    </xsl:template>
</xsl:stylesheet>

The above example that I have given you, will pass a node set, which contains all the children of the 'flights' element. The template then counts how many 'flight' children have the type attribute having the value of 'A'. The answer should be 2.

For more details on the above axes, have a look at this link:

http://www.zvon.org/xxl/XSLTreference/Output/axesIndex.html

Hope that helps!
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