Re: [xsl] Release Date vs. Highlight Until Date
Subject: Re: [xsl] Release Date vs. Highlight Until Date|
From: John <john-xsl-list@xxxxxxxx>
Date: Wed, 29 Sep 2004 08:33:11 -0700
Thanks to everyone who responded on this thread. I did have some time
to read parts of an old copy of White's "Mastering XSLT" (not the best
intro I think) over the weekend, and ordered another recommendation. I
still don't understand why/when to use for-each and when to use
apply-templates, but I seem to prefer for-each. I have restructured the
XML and implemented a variety of the suggested techniques. One thing
I'm still strugling with is how to select the date value for sorting.
Say I have XML something like the following:
<item release="20031212T121212" highlight="20041212T121212" />
where there could be any number of item elements. I want to select for
sort one of the attributes from each item and use that in the sort. The
attribute I want is release unless highlight is less than sysdate.
Right now I am getting sysdate and doing the logic with extensions, but
I would prefer to avoid this (I know I can get rid of the sysdate
extension with parameters but I am more concerned about the comparison
extension). My C# extension looks like this (I can't even be sure this
is the right logic - it *seems* to work - but hopefully you get the
idea). Thanks in advance to anyone who can convert this to pure XSL.
public string SortNewsDate( string strSysDate, string
strHighlightUntilDate, string strReleaseDate )
DateTime dtResult = DateTime.MinValue;
if ( strSysDate != null && ! strSysDate.Equals( "" ))
if ( strHighlightUntilDate != null && !
strHighlightUntilDate.Equals( "" ))
dtResult = DateTime.ParseExact(
strHighlightUntilDate, SC_DATE_FORMAT, null );
if ( dtResult.CompareTo( DateTime.ParseExact(
strSysDate, SC_DATE_FORMAT, null )) < 0
&& strReleaseDate != null && !
strReleaseDate.Equals( "" ))
dtResult = DateTime.ParseExact( strReleaseDate,
SC_DATE_FORMAT, null );
catch( Exception ex )
throw new Exception( ex.Message + strSysDate + " : " +
strHighlightUntilDate + " : " + strReleaseDate );
return( dtResult.ToString( SC_DATE_FORMAT ));