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RE: Reference to variable cannot be resolved.

Subject: RE: Reference to variable cannot be resolved.
From: "Martinez, Brian" <brian.martinez@xxxxxxxx>
Date: Thu, 13 Feb 2003 11:37:45 -0700
reference to variable or parameter
> From: Imrran Wahid [mailto:devguy2003@xxxxxxxxx]
> Sent: Thursday, February 13, 2003 11:19 AM
> Subject:  Reference to variable cannot be resolved.
> 
> I get the following error when attempting to transform
> an xml using IE 6.
> 
> "A reference to variable or parameter 'ItemAStruct'
> cannot be resolved. The variable or parameter may not
> be defined, or it may not be in scope."
> 
> Here's a snippet from my xsl:
> <xsl:template match="/">
>   <html>
>    <body bgcolor="#B0C4DE">
>     <xsl:variable name="ItemAStruct"
> select="document('lookup.xml')/TableStructures/ItemA"/>
>     
>     <xsl:apply-templates select="//Content/ItemAs" /> 
>   </body>
>   </html>
> </xsl:template>
> 
> <xsl:template match="ItemAs">
>   <xsl:variable name="ItemAs" select="."/>
>   <!-- process each ItemA element from lookup.xml -->
>   <tr>
>   <xsl:for-each select="$ItemAStruct">
>     <xsl:variable name="ItemName"
> select="string(name(.))"/>
>     <xsl:if test="count($ItemAs/*[name(.)=$ItemName])
> &gt; 0">
>       <th><xsl:value-of select="$ItemName"/></th>
>     </xsl:if>
>   </xsl:for-each>
>   </tr>
> </xsl:template>
> </xsl:stylesheet>
> 
> 
> Can anyone spot the culprit?

It's a scope issue: $ItemAStruct exists only within its local template, so
your matching template can't "see" it.

You have two options: make $ItemAStruct a global variable (i.e., move its
xsl:variable declaration outside your templates), or better yet, pass it as
a parameter:

<xsl:apply-templates select="//Content/ItemAs">
  <xsl:with-param name="ItemAStruct"
select="document('lookup.xml')/TableStructures/ItemA"/>
</xsl:apply-templates>

<xsl:template match="ItemAs">
  <xsl:param name="ItemAStruct"/>
  <!-- rest of code -->
</xsl:template>

hth,
b.

| brian martinez                              brian.martinez@xxxxxxxx |
| senior gui programmer                                  303.708.7248 |
| trip network, inc.                                 fax 303.790.9350 |
| 6436 s. racine cir.                             englewood, co 80111 |
| http://www.cheaptickets.com/                   http://www.trip.com/ |

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