hello, here is my situation... I would like the headers of the table containing the results of a catalog query, to be reversable sorting. I'm not sure i'm clear, but just like in the FileLibrary example given w/ zope 2.5. I studied this example and tried to modify it to suit my need but... As it always starts a new query i get a new results sorted. Say I have a result from the Catalog from a complex query... when I sort w/ the headers I loose my filter, all records comme back. I don't know how to keep the parameters of the query (session ?) As well, I need a default query to apply (the last 20 modified) Everything works fine, but this. I am not very familiar of the new TAL language... at the moment I still develop mostly in DTML & python scripts. I think, I have a very standard situation, but found no info about that in my books, or the zope book, or the last 10,000 messages of this board.... any help appreciated