Hi all,

In reference to this post:

http://p2p.wrox.com/topic.asp?TOPIC_ID=50270 which was answered by Michael Kay

This xpath works fine when parsing outside of ASP.net:






I am recieving the following error when trying to parse through ASP 2.0

"'document(@loc)/id(current()/@item)' is an invalid XPath expression"


Do I need to go to XSLT 1.0? And if so how?

Thanks for the help.

The expression document(@loc)/id(current()/@item is valid in XSLT 2.0 but not in XSLT 1.0. In a 1.0 processor you can write:

<xsl:template match="JBU:share">
  <xsl:variable name="x" select="@item"
  <xsl:for-each select="document(@loc)">
    <xsl:apply-templates select="id(@x)/node()"/>
  </xsl:for-each>

Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference

Thanks Michael,

I am recieving the following error:

The variable or parameter 'x' cannot have both a 'select' attribute and non-empty content

Thanks,

Bones

I think you need to close the variable: --

Joe (Microsoft MVP - XML)

>The variable or parameter 'x' cannot have both a 'select' attribute and non-empty content


Could you please tell me *why* you were unable to understand that error message and correct the code?

I genuinely want to know the answer. I try very hard to construct error messages that are clear to users, even users unfamiliar with the detailed rules of the language. If I can make this message clearer, I would love to do so.

Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference

Michael,

Sometimes the most obvious escapes me, coupled with the fact that I am sometimes "thick headed".

My first guess would be that the @item is empty or that the attribute would need change to a "required" rather than "optional" in my schema.

I appreciate the help. If you can get the answer out of me, I will learn more.

Thanks,

Bones

Michael,

As I trouble shoot this error I have a question. With a <xsl:variable> element, once you have set a variable's value, you cannot change or modify it. But the template is asking it to change, provoking the error. If @item is a variable (because I need it to select different IDs from and XML document) then how can I use it?

Thanks,

I've no idea what you mean by saying "the template is asking it [the variable] to change".

Although a variable, once instantiated, cannot change its value, it can have different values each time it is instantiated. Usually this is achieved by defining parameters to a template, but in fact it's true of any local variable that its value varies from one invocation of the containing template to another.

Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference

Michael,

Thank your for the insight. I continue to read and try to learn. This is what I have so far. I am at work and can not try it, but am I close?



In

I changes the '@' to '$' to pick up the variable. Is this correct?

Thanks for the help.

Bones

Yes, this looks OK.

Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference