RE: [xsl] Newbie: See if a node exists!

[Anand Kuppa <AnandK@xxxxxxxxxxxxxx>]

thanks for all the info, guys... i am just starting out in XSL and these
were real good tips....

-----Original Message-----
From: Joerg Heinicke [mailto:joerg.heinicke@xxxxxx]
Sent: Friday, June 07, 2002 2:36 PM
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re: [xsl] Newbie: See if a node exists!


Anand Kuppa wrote:
> Try using COUNT
> you could do something like 
> 
> <xsl:when test = "if COUNT(BLOCK) > 0>
> 	........what u want to do 
> </xsl:when>
> 
> lemme know if it worked...
> cheers

Hello Anand,

you never need to count elements, if you only want to know, whether an 
element exists or not.

<xsl:if test="BLOCK">
</xsl:if>

is enough.

Even if you want to know whether there are 4 elements or not, you don't need

to count them:

<xsl:if test="BLOCK[4]">
</xsl:if>

tests whether a 4th BLOCK-element does exist.

Your test as above has two little errors:

<xsl:when test="count(BLOCK) > 0">
</xsl:when>

There must not be an 'if' in the test. The element already has the name 
<xsl:if/> or <xsl:when/>. And - as David wrote - XML is case sensitive, so 
their is no XPATH function COUNT(), but count().

Regards,

Joerg


-- 

System Development
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