I just released two more videos (#15, #16) in the Forms Over Data video series. One is on understanding data binding and how it works from database all the way to the controls you see on forms. We talk about the relationship between the TableAdapter, the BindingSource and the DataSet and I show how to work with data in your code.
The second one explains how to update related data tables like I explained in this post. This video doesn’t go into how to set up the transactions but you can read about how to do that here. I’ve also attached the code from the videos here.