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RE: [xsl] Best practices

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This is the context in which I need to use these techniques...

<xsl:choose>
	<xsl:when test="//InsClaimsAdverseClaimant[@ClaimantId2 =
$Id]/PowerLocks='Y' ">
				<input type="checkbox" checked="checked"
readonly="readonly"/>
	</xsl:when>
	<xsl:when
test="not(normalize-space(//InsClaimsAdverseClaimant[@ClaimantId2 =
$Id]/PowerLocks)) ">
				<input type="checkbox" checked=""
readonly="readonly"/>
	</xsl:when>
	<xsl:when test="//InsClaimsAdverseClaimant[@ClaimantId2 =
$Id]/PowerLocks='N' ">
				<input type="checkbox" checked=""
readonly="readonly"/>
	</xsl:when>
</xsl:choose>

The users want to see checkboxes  on the report either checked or not, based
on an elements value.  So, if the element has a value of 'Y', then I need to
display a checked checkbox.

If the value is 'N', or if it is an empty element <PowerLocks/>, or if it
not exist at all, if the parent contains no elements that have values, I
need to display an unchecked checkbox.


I used the not(normalize-space(myelement)) which seems to be what I would
want since it checks all scenarios to print an unchecked checkbox, but my
output for checkboxes does not render now.  I must not be using it
correctly???

Also, as a side note, readonly does not work here??? I cant use disabled
since the checkboxes are solid black when printed.  Some are saying to use a
.gif ???  Is there a better way?

-----Original Message-----
From: Michael Kay [mailto:michael.h.kay@xxxxxxxxxxxx]
Sent: Tuesday, June 18, 2002 1:29 PM
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject: RE: [xsl] Best practices


> From a design standpoint, what is the "defacto" way to test 
> for an empty element?  

You have to be very careful what you mean by an "empty element". Which
of the following are empty?

<p/>
<p>  </p>
<p><!-- this is empty --></p>
<p><i></i></p>

p='' checks that the element exists and has an empty string-value: it
will match 1,3,4 in the above list, and 2 if xsl:strip-space is in use.
not(p/node()) checks that the element exists and has no children: it
will match item 1 in the above list.
not(normalize-space(p)) will match all the above.

Michael Kay
Software AG
home: Michael.H.Kay@xxxxxxxxxxxx
work: Michael.Kay@xxxxxxxxxxxxxx 


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