RE: catch from another node with the same id (NEWBIE)

Hi Thomas
[snip]
> 
> instead of the "id" i need the product name (bezeichnung) which is 
> stored in a completly different node "/page/info/produkte/" 
> but with the 
> correspondending "id"
> <page>
>   <info>
>    <produkte>
>     <produkt id="1" bezeichnung="Produkt A">
>      <text>Produktebeschrieb A</text>
>     </produkt>
>     <produkt id="2" bezeichnung="Produkt B">
>      <text>Produktebeschrieb B</text>
>     </produkt>
>     <produkt id="3" bezeichnung="Produkt C">
>      <text>Produktebeschrieb C</text>
>     </produkt>
> ........
>    </produkte
>   </info>
> </page>
> 
> can I use some kind of variable to do it? Or how do I get the 
> correspondending "bezeichnung" attribute from the other node?
> Any hints?

Close - but you want a key rather than a variable.

Declare the key outside of any template.

<xsl:key name="productNameByID" 
	match="info/produkte/produkt" 
	use="@id"/> 

This will let you "catch" nodes in the document that are matched
by the match expression, using their id attribute.

You use the key inside your for-each like so:
 <fo:block>
    <!--  <xsl:value-of select="@id"/>  -->
	<xsl:value-of select="key('productNameByID',@id)/@bezeichnung"/>
   </fo:block> 

Keys also speed things up considerably and are used for grouping.

Have fun.
Tom

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