1) saving only works on the elements currently viewing. Let me explain, mine is a dynamic scenario that changes in response to customer choice. the customer is chosen through a list box, and the table for entries is updated in relation to the customer chose. Each client is associated with a family of products and the table changes its number of lines in relation to the family. So there will never be a constant number of rows.
I'd like to save everything and not just data related to the customer chose.