RE: [xsl] XSL - suppression of page header for first page of report

["David Dunkenberger" <dgdunk@xxxxxxxxx>]

I am using the XSL Report Designer from Antenna House to generate the XSL.
The corresponding XSL is being run on an AIX machine so XSL-FO.  By default
the XSL that is generated by the Antenna House software causes the page
header to be printed on every page, hence the issue.

My apologies re; the expression: currentPage() - that is just commented
section in the xsl section. It looks like the actual call is
<fo:page-number/>.

Thanks for the reply.

David

-----Original Message-----
From: G. Ken Holman [mailto:gkholman@xxxxxxxxxxxxxxxxxxxx] 
Sent: Wednesday, September 08, 2010 9:43 PM
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re: [xsl] XSL - suppression of page header for first page of report

At 2010-09-08 21:31 -0400, David Dunkenberger wrote:
>I am using an expression to display the current page number in the page
>footer.
>[expression : currentPage()]

I'm not sure which language you are using with that function call, 
but you are in a situation where you need to test some condition of 
the *interpretation* of your result while you are in the 
transformation of the data that is producing your result.

It can't be done that way ... XSLT is at arm's length from the system 
that is interpreting the result of your XSLT.

>I need to have some information print in the page header, but I don't want
>it to show on the first page, just every subsequent page.

When using XSL-FO, this is accomplished with a page-sequence-master 
that sequences a page header without a page number on the first page 
of the page sequence, followed by a page header with a page number on 
every other page of the page sequence.  Then the transformation is 
declarative and blissfully unaware of the interpretation of its 
result:  it simply sequences the page headers as desired and lets the 
XSL-FO processor worry about rendering one of the two kinds of 
headers on the pages.

>I tried to use an xsl:if test"currentPage()= 0", but that isn't working.

Right ... because XSLT is going from XML to your rendering language, 
and the knowledge that the page is at the beginning is known only to 
your rendering language renderer.  When using XSL-FO that is the 
XSL-FO engine, which knows nothing and has no feedback loop to the XSLT
engine.

>Is
>there another way or better way to suppress information printing in the
page
>header for the first page only?

Depends on which rendering language you are using.  "currentPage()" 
isn't a function of XSL-FO or any rendering language I know, so I 
can't advise specifically.  Look for a way that your rendering 
language supports two kinds of headers, or perhaps your rendering 
language has an expression language of its own.  For example, though 
it doesn't work with page numbers, you can express arithmetic 
calculations in XSL-FO attributes for the XSL-FO engine to resolve, 
not having to have the XSLT processor resolving them.  Sadly, page 
numbers are not available operands in XSL-FO's expression language, 
and the expression language is only arithmetic and does not have
conditionals.

I hope this helps.

. . . . . . . . . Ken

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