Hi Walter,

I had a similar request earlier this year (list of keywords) and ended up writing an XSLT Extension for that. Get all the news nodes and get the date property from that add the unique years to an xml document and return that as a XpathNodeIterator what you can use in your xslt again. The example below shows you how to build an xml fragment and returns that as an XpathNodeIterator

 
public static XPathNodeIterator GetTextInfo(string applicationName, string locale, string context)
{
 
XPathNodeIterator result = null;
 
string xpath = string.Format("//node[@nodeTypeAlias = 'TextContentRoot']/node[data [@alias='nodeNameToLower'] ='{0}']/node[@nodeTypeAlias = 'TextItem' and data [@alias='nodeNameToLower'] = '{1}'] ", applicationName.ToLower(), context.ToLower());
 
Node node = GetResult(xpath);
 
if (node != null)
{
 
string title = GetPropertyValue(node.GetProperty(string.Format("{0}_Title", locale)));
 
string text = GetPropertyValue(node.GetProperty(string.Format("{0}_Text", locale)));
 
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.AppendChild(xmlDoc.CreateElement(
"TextInfo"));
 
XmlNode titleNode = xmlDoc.CreateElement("title");
titleNode.InnerText = title;
 
XmlNode textNode = xmlDoc.CreateElement("text");
textNode.InnerText = text;
xmlDoc.DocumentElement.AppendChild(titleNode);
xmlDoc.DocumentElement.AppendChild(textNode);
result = xmlDoc.CreateNavigator().Select(
"//TextInfo");
}
 
return result;
}

Then you can configure the xslt Extension as described in this blogpost. While writing this reply I was looking for more concrete examples but couldn't findi those. Could be the first Blogpost/WIKI page for 2010 :-) 

 I've seen some post on how to do that with 100% pure XSLT but I couldn't read that code ;-)

Hope this puts you in the right direction.

Cheers,

Richard

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