I've managed to get a little bit further... In my webpart, which uses the template I made for showing and selecting the date, I have two ways to edit an entry. 1) Through details and then edit from a MenuItemTemplate 2) Directly edit through a MenuItemTemplate Using the first method gives me errors (error: Object expected). Using the second method works flawless. The template is called as a template for a templatefield in a detailsview. Anyone have any idea? Nah... What's up, Doc? CCC's solved : 1 If a bus station is where a bus stops, and a train station is where a train stops, why do I have a work station on my desk?