private void Form1_Load(object sender, EventArgs e)
        {
            List <UserAccount> currentUserAccounts = new List <UserAccount>();

            currentUserAccounts = UserAccountsData.initializeAccount();
            List <Customer> currentListOfCustomers = new List <Customer>();

            currentListOfCustomers = CustomersData.initializeData();
            List <Sales> currentListOfSales = new List <Sales>();

            currentListOfSales = SalesData.initializeData();
        }
 public void populateList()
 {
     currentListOfSales       = SalesData.getCurrentList();
     dataGridView1.DataSource = currentListOfSales;
 }