private void attempt_log_in() { NewController ctrl = NewController.getInstance(); ctrl.getDTO().getUsuario().id = tBCorreo.Text; if (ctrl.login()) { this.Hide(); ProxyVistaMain proxy = new ProxyVistaMain(); Form main = proxy.vista; main.ShowDialog(); tBCorreo.Text = ""; this.Show(); } else { System.Windows.Forms.MessageBox.Show("Error: usuario no existe"); } }