Thanks for the responses.  Based on your help, the
following stylesheet was implemented.

<?xml version="1.0"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
	<xsl:strip-space elements="*"/>
	<xsl:output method="xml" indent="yes"
encoding="UTF-8"/>
	
	<xsl:param name="productid"/>
	<xsl:param name="productidext"/>
	<xsl:param name="companynumber"/>
	
	<xsl:template match="/">

	<DataService>
		<Transaction>
			<Command type="Add">
				<MasterCatalogRecord etype="Entity"
commandqualifier="Validate/Process">	

					<xsl:apply-templates/>
		
				</MasterCatalogRecord>
			</Command>
		</Transaction>
	</DataService>			
	
	</xsl:template>    
	
	<xsl:template match="Transaction">
		<xsl:apply-templates/>
	</xsl:template>
	
	<xsl:template match="Response">
		<xsl:apply-templates
select="MasterCatalogRecord[ExternalKeys[Key[@name='PRODUCTID']=$productid
and Key[@name='PRODUCTIDEXT']=$productidext]]"/>
	</xsl:template>
	
	<xsl:template match="MasterCatalogRecord">
		<xsl:copy-of select="ExternalKeys"/>
		<xsl:copy-of select="EntityData"/>
	</xsl:template>
	
<!--	<xsl:template
match="//DataService/Transaction/Response/MasterCatalogRecord/ExternalKeys/Key[@name='PRODUCTIDEXT']">-->
	<xsl:template
match="//Key[@name='PRODUCTIDEXT']/text()">
		<xsl:value-of select="$companynumber"/>
	</xsl:template>	

	
		
	<xsl:template match="TransactionResult">
	</xsl:template>	

</xsl:stylesheet>


I now have a requirement to only extract the <Key>
elements which have values.

Thanks in advance.
Chris


--- cknell@xxxxxxxxxx wrote:

> I had to clean up your XML ("MasterCatalogResponse"
> in the opening tag does not match "" in the closing
> tag), but here is a quick and dirty stylesheet that
> does what you ask.
> 
> Whenever I do one of these, the next person to come
> along invariably has a much more elegant solution,
> so you may want to hold your fire pending further
> responses.
> 
> <?xml version="1.0"?>
> <xsl:stylesheet version="2.0"
> xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
>   <xsl:strip-space elements="*" />
>   <xsl:output method="xml" indent="yes"
> encoding="UTF-8" />
>   
>   <xsl:param name="key1" />
>   <xsl:param name="key2" />
> 
>     <xsl:template match="/">
>         <xsl:apply-templates />
>     </xsl:template>
>     
> 	<xsl:template match="Transaction">
> 	  <xsl:apply-templates />
> 	</xsl:template>
> 	
> 	<xsl:template match="Response">
> 	  <xsl:apply-templates
> select="MasterCatalogResponse[ExternalKeys[Key=$key1
> and Key=$key2]]" />
> 	</xsl:template>
> 	
> 	<xsl:template match="MasterCatalogResponse">
> 	  <xsl:copy-of select="EntityData" />
> 	</xsl:template>
> 
> </xsl:stylesheet>
> -- 
> Charles Knell
> cknell@xxxxxxxxxx - email
> 
> 
> 
> -----Original Message-----
> From:     Chris Coyle <chriscoyle@xxxxxxxxx>
> Sent:     Wed, 24 Jan 2007 11:51:12 -0800 (PST)
> To:       "Mullberytech.com"
> <xsl-list@xxxxxxxxxxxxxxxxxxxxxx>
> Subject:   XSLT to query/output a portion of an
> XML source document
> 
> 
> 
> I need to write a query to pull 1 node out of a
> source
> XML document.
> 
> The source document has a structure of 
> 
> <Transaction>
> 	<Response>
> 		<MasterCatalogResponse>
> 			<ExternalKeys>
> 				<Key>1</Key>
> 				<Key>a</Key>
> 			</ExternalKeys>
> 				<EntityData>
> 					<Attribute>a</Attribute>
> 					<Attribute>b</Attribute>
> 				</EntityData>
> 		</MasterCatalogRecord>
> 		<MasterCatalogResponse>
> 			<ExternalKeys>
> 				<Key>2</Key>
> 				<Key>b</Key>
> 			</ExternalKeys>
> 				<EntityData>
> 					<Attribute>a</Attribute>
> 					<Attribute>b</Attribute>
> 				</EntityData>
> 		</MasterCatalogRecord>
> 		<MasterCatalogResponse>
> 			<ExternalKeys>
> 				<Key>3</Key>
> 				<Key>c</Key>
> 			</ExternalKeys>
> 				<EntityData>
> 					<Attribute>a</Attribute>
> 					<Attribute>b</Attribute>
> 				</EntityData>
> 		</MasterCatalogRecord>
> 	</Response>
> </Transaction>
> 
> I need to extract the <EntityData> element for a
> given
> <ExternalKeys> value match.  The result should look
> like this for an ExternalKeys  (2,b)
> 
> 				<EntityData>
> 					<Attribute>a</Attribute>
> 					<Attribute>b</Attribute>
> 				</EntityData>
> 
> 
> This is what I tried:
> 
> <?xml version="1.0" encoding="UTF-8"?>
> <?altova_samplexml SampleQueryResponse.xml?>
> <xsl:stylesheet version="2.0"
> xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
> xmlns:fo="http://www.w3.org/1999/XSL/Format"
> xmlns:xs="http://www.w3.org/2001/XMLSchema"
> xmlns:fn="http://www.w3.org/2005/xpath-functions">
> 
>     <xsl:output method="xml" encoding="UTF-8"
> indent="yes" />
> 
> <xsl:template match="/">
>    <xsl:for-each
>
select="//DataService/Transaction/Response/MasterCatalogRecord">
> 	   <xsl:element name="EntityData">
> 		   <xsl:value-of select="."/>
> 	   </xsl:element>
>    </xsl:for-each>
>  </xsl:template>
> 
> </xsl:stylesheet>
> 
> 
> Any suggestions are welcome.
> 
> 	
> 
> 
> 
>  
>
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