Databinding - again

Databinding seems to be a straightforward method of doing a record based application - but one thing that's been a real struggle of late is dealing with databound objects that can be updated programmatically...

Take for example an "end date" which is something the user can enter. Then add a duration box (an alternative way of getting to the same result) - so now when a duration is entered the end date should be recalculated. But it's databound!

This seems very difficult to find information on; but it would appear that calling row.BeginEdit and row.EndEdit around the update improves the situation a lot. However we have one PC that works differently from all the others - run the same application and the duration calculation just doesn't work. If we ever find out why we'll post it up here!