Re: [xsl] Re: sorting

[Joerg Heinicke <joerg dot heinicke at gmx dot de>]

OBD wrote:
> That works. Thanks.
> In case there is no sort column, will setting the variable $chosen to some
> value like 0
> disable the sort? This is desired so I don't have to use <xsl:if> to special
> case the
> sorting (there is a related thread on this topic but I want to confirm for
> this example).
0 is ok. column[0] doesn't exist, so there is nothing to sort for and 
you should get the columns unsorted.


> Also, I tried using an attribute directly  in the predicate instead of a
> variable and it
> didn't work. Is this supposed to work? Example:
>
> <xsl:sort select="column[number(@sort-column)]"/>
It's absolutely correct XPATH. But it will not do what you want as you 
already have seen. Written in this way @sort-column refers to the 
column, i.e. the @sort-column's value of the column to sort for. And 
column is relative to the expression in the <xsl:for-each select="...">. 
I think your only way is to store the @sort-column's value in a variable.


> Is this a valid predicate?  It is still better to use a variable, I believe,
> because then
> I could use <xsl:if> to set it to 0 if there was no sort-column attribute
> and get the
> benefits I described above, assuming it works that way.
>
> Thanks,
> Stuart Zakon
Regards,

Joerg



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