Retrieving selected values of dataGridViewComboBoxColumn

Question

I have a dataGridView (dgv) with a databound dataGridViewComboBoxColumn (dgvCbCol).  After making the selections on the dgvCbCol, I save the selected values to the database and close the form. When I reopen the form, I would like to see the dgvCbCol restore all the selections I have made. How do I do that? Thanks.