Question

I am using a XSLT Transformer in Java. I am sure the problem is in the way I’m typing in the XSLT syntax.

Basically, I have to see if an attribute ‘id’ in one of the nodes of XML is equivalent to a value, the XSL should process a template. I need to pass this test value as a xsl:param. When I test it on a static value, it works cool:

<ul class="levelOneNav">
 <xsl:for-each select="level1[@id='sub-page-1']">
  <xsl:call-template name="level1"/>
  </xsl:for-each>
 <div class="clear"></div>
</ul>       

The testing portion is in second line above. AFAIK to put in a param inside the strings, the format is <xsl:for-each select="level1[@id='$ContentID']"> in which $ContentID is the xsl:param declared as <xsl:param name="ContentID"/>

So this is the code I’m keying in

<ul class="levelOneNav">
 <xsl:for-each select="level1[@id='$ContentID']">
  <xsl:call-template name="level1"/>
  </xsl:for-each>
 <div class="clear"></div>
</ul>       

but it doesn’t work. I’ve also tried using <xsl:for-each select="level1[@id='{$ContentID}']">
and it also fails.

Any advise is appreciated greatly. Please give me links if you feel I should learn something. Thanks for your time …

Answer 1

No, that “AFAIK” is where you are wrong. Some string values in XSLT attributes certainly do accept a "{$param}" syntax (note the braces), but in your case what you are after is much simpler: @id=$ContentID

EDIT: Note that the ‘{$param}’ applies for XSLT attributes, see example:

<xsl:element name="{$namespace}:{$elementName}">
   <xsl:attribute name="{$attrName}"><xsl:value-of select="$value"/></xsl:attribute>
</xsl:element>