How to tell if user has modified data using bindingsource?

Question

I have a DataGridView bound to a bindingsource which is bound to a List. The user clicks a row that goes to a form with textboxes, etc. The textboxes a

Answer 1

If your object within the List support the INotifyPropertyChanged event and you replace the List by a BindingList you can subscribe to the ListChanged event of the BindingList to get informed about any changes made by the user.