Re: [xsl] Change header content dynamically

["G. Ken Holman" <gkholman@xxxxxxxxxxxxxxxxxxxx>]

At 2010-07-27 06:17 -0700, Jean Fautrix wrote:
> We are using XML and XSLT to create reports (Through Altova 
> StyleVision 2008 - and we are quite new to all that).
> We have the ordinary header and footer (for all of the reports), but
> the column names need also to be located in the header, so that it
> appears on every new page.
>
> But a few of these reports change the content of its columns so we
> need to change all the columns names accordingly to fit the new content.

Fine.

> According to the content of the table I would like to be able to
> change the content which appears on the header.

Just start a new table with a new <table-header> set of column 
heads.  The <table-header> element is repeated after every page-break.

Note if you had this problem with page columns instead of table 
columns you would use <marker> and <retrieve-marker>.

Also, if you really needed the table headings to be in the page 
header instead of a table header, you can also use <marker> and 
<retrieve-marker>, but since you are explicitly talking about the 
"content of the table", it would seem best to access this with <table-header>.

> How can I use some conditional instruction to do that?

The "conditional processing" in XSL-FO is based on contingencies, not 
on explicit tests of any kind.  When you say "conditional processing" 
that implies to me you are asking about XSLT, and XSLT knows nothing 
of page breaks that naturally occur in the processing of XSL-FO.

I hope this helps.

. . . . . . . . . Ken


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