I have a web page in sharepoint 2010 on which I have added a document library using a XSLT ListView web part in sharepoint designer. I created a parameter that gets its value from the URL and is used to filter the list of documents.
I then want to group the documents by a category field, however when I do this the groups show in the page with the correct number of filtered documents showing in the group header, but when I expand the group nothing shows up.
If I remove the filter the groups work fine, expanding and showing all the documents. But as soon as I filter it using my parameter the documents will not show when expanding the group.
The filter works by itself & the grouping works by itself but not together.
Any ideas why and how to fix?