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Retaw GnirpsSubject: Param not incrementing
Author: Retaw Gnirps
Date: 05 Aug 2009 04:16 PM
Hello,

I am currently trying to use the code below to increment the currentChild after every iteration. However, in the output shown below, it is apparent that the value is never changing.

There are four children in this example, so it is printing out the statements the correct number of times, just not incrementing the value.

What can I do to keep track of the currentChild count?

Thanks.

Code:

<xsl:param name="currentChild">0</xsl:param>

<xsl:for-each select="Attribute[./@name='Children.Name']/Value">
<xsl:value-of select="$currentChild"/> before increment<br/>
<xsl:with-param name="currentChild" select="$currentChild+1"/>
<xsl:value-of select="$currentChild"/> after increment<br/>
</xsl:for-each>


Output:
0 before increment
0 after increment
0 before increment
0 after increment
0 before increment
0 after increment
0 before increment
0 after increment
Posttop
Tony LavinioSubject: Param not incrementing
Author: Tony Lavinio
Date: 10 Aug 2009 10:34 AM
<xsl:with-param> does not change a value in the current context, it
mere passes an expression down to a called template.

You should not expect variables in XSLT to act like in other languages.
Once set, they cannot be changed within their scope.

What you can do is use position(), which will count through the
<xsl:for-each> for you.
   
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