RE: [xsl] How can I test if element is empty?

Subject: RE: [xsl] How can I test if element is empty?
From: "Xu, Xiaocun" <XXu@xxxxxxxxxxxx>
Date: Tue, 20 Mar 2001 09:15:38 -0500
Ooops, sorry about that mistake :(
My original code was testing for not equal (!=).  Being the programmer that
I am, I mistakenly changed != to == for equal (since original poster was
asking for that), not so in XSL, DUH!!

David, you are right, I was just testing for the content of the leaf node,
so I didn't need to check for child.  I will try your suggestion so that it
would cover all potential situations.

Thanks,

Xiaocun Xu
Emptoris, Inc.
xxu@xxxxxxxxxxxx

> -----Original Message-----
> From: David Carlisle [mailto:davidc@xxxxxxxxx]
> Sent: Tuesday, March 20, 2001 8:54 AM
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: Re: [xsl] How can I test if element is empty?
> 
> 
> 
> > One way to do it is:
> > <xsl:when test="string(elem) == string('')">
> > Note: the quotes inside the second string() is two single quotes
> 
> No. This is a FAQ. (see the faq pages, I'd guess)
> equality is = not == and the above would test true for
> 
> <elem><anything/><x><y/></x></elem>
> 
> sometimes you do want to test for that, but it isn't testing if the
> element is empty. 
> 
> <xsl:when test="elem/node()">
> tests if elem has any child nodes (text, comments, elements, pis)
> 
> David
> 
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