private void LoadRentals()
        {
            try
            {
                RentalList = RentalDB.GetRentalsOf(ActiveMember);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message + "\n\n" + ex.StackTrace);
            }

            ScrollDisplay(ScrollPosition);
            lbl_TotalRentals.Text = RentalList.Count.ToString();
        }