private int customerIDCounter; //Will be used for customer ID

        //CONSTRUCTOR
        public Customer_MainScreen()
        {
            InitializeComponent();
            sql = new MySQLDatabaseDriver();
            customerIDCounter = 0;
            customerList      = new ArrayList();

            //---STREAMREADER (MYSQL DATABASE -> ARRAYLIST -> DGV)
            sql.SelectAllCustomers(customerList);
            for (int i = 0; i < customerList.Count; i++)
            {
                Customer c = (Customer)customerList[i];
                dgvCustomers.Rows.Add(c.CustomerName,
                                      c.CustomerPerson,
                                      c.CustomerNumber,
                                      c.CustomerEmail);
            }
            customerIDCounter = customerList.Count + 1;
        }