Thanks a lot. I got it fixed. 
My xml file was <pb></pb> when 'a' tag is absent
instead of <pb><e></e></pb>, so the message resides
between <xsl:otherwise> tag couldnt be displayed.

Thanks and have a good day

Dinh Tran

--- Michael Kay <mike@xxxxxxxxxxxx> wrote:

> Can't see anything wrong with this code snippet,
> perhaps the problem will be
> revealed if you try to create a complete (but small)
> stylesheet that
> demonstrates the problem, and post the whole thing.
> 
> Michael Kay
> http://www.saxonica.com/ 
> 
> > -----Original Message-----
> > From: Tran Thanh Dinh [mailto:dinh107@xxxxxxxxx] 
> > Sent: 15 July 2005 09:50
> > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> > Subject: Re:  xsl:when, xsl:otherwise
> question?
> > 
> > hi,
> > 
> > I am new in xsl, please help me to figure out why
> my
> > following code doesnt work:
> > here's the xml data:
> > 
> > <pb><e><a>hello</a></e></pb>
> > and it can be also <pb><e></e></pb>
> > 
> > so actually I want to separate 2 cases, one when
> tag a
> > doesnt exist and the other one is when it exists.
> > 
> > <xsl:choose>
> >  <xsl:when test="a">
> >   <tr><td>null</td></tr>
> >  </xsl:when>
> >  <xsl:otherwise>
> >   <tr><td>not null</td></tr>
> >  </xsl:otherwise>
> > </xsl:choose>
> > 
> > The result I got when tag 'a' exists is ok. I got
> > "null" displayed but when tag 'a' doesnt exist, i
> got
> > nothing display.
> > 
> > could you please let me know if the syntax i used
> is
> > correct and what i am supposed to do please.
> > 
> > thanks a lot
> > 
> > Dinh Tran
> > 
> >  
> > 
> > 
> > 
> > 
> > 		
> >
> ____________________________________________________
> > Start your day with Yahoo! - make it your home
> page 
> > http://www.yahoo.com/r/hs 
> 
> 


 



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