//when user clicks suppliers from,
 //View -> Suppliers
 private void menu_strip_suppliers_Click(object sender, EventArgs e)
 {
     if (suppliers.IsDisposed)
         suppliers = new Suppliers();
     suppliers.Show();
 }
        private void form_login_Load(object sender, EventArgs e)
        {
            //initialize the oracle database controller
            odbc = new OracleDatabaseController();

            //inittialize all the other forms to be used from this form
            otlf = new OneTimeLoginForm();
            suppliers = new Suppliers();
            products = new Products();
            productCatagories = new ProductCatagories();
            order = new Order();
            bill = new Bill();
            StaffBuffer.loggedIn = false;
            renderForm();
        }