Question

I have a XML File I want to transform to XML. And I need to dynamically set the name parameter of XML Tags, so it would be something like this:

<VALUE name="$varname"><xsl:value-of select="@value"/></VALUE>

I got something like this:

<xsl:for-each select="PRODTABLE/PRODTR">
   <xsl:variable name="varname">
      <xsl:copy-of select="PRODTD/PRAT/@name"/>
   </xsl:variable>

   <VALUE name="$varname">
      <xsl:value-of select="PRODTD/PRAT/VALUE"/>
   </VALUE>

</xsl:for-each>

But obviously, that doesn’t work. Is there a way to achieve this?

Answer 1

This is a FAQ.

The quick answer: An attribute value specified as name="$varname" is literally the string “$varname”.

The way in XSLT to produce an attribute with a dynamically computed value is either to use AVT (Attribute Value Template) or the <xsl:attribute> instruction.

Solution:

Use:

<VALUE name="{$varname}"> 

Your code may be re-written in this shorter way:

Instead of:

    <xsl:for-each select="PRODTABLE/PRODTR">
        <xsl:variable name="varname">
            <xsl:copy-of select="PRODTD/PRAT/@name"/>
        </xsl:variable>
        <VALUE name="$varname">
            <xsl:value-of select="PRODTD/PRAT/VALUE"/>
        </VALUE>
    </xsl:for-each>

use:

    <xsl:for-each select="PRODTABLE/PRODTR">
        <VALUE name="{PRODTD/PRAT/@name}">
            <xsl:value-of select="PRODTD/PRAT/VALUE"/>
        </VALUE>
    </xsl:for-each>