private void RegisterButton_Click(object sender, EventArgs e) { String username = UsernameBox.Text; String password = PasswordBox.Text; try { Employee employee = ctrl.RegisterEmployee(username, password); if (employee == null) { this.Hide(); loginForm.Show(); this.Close(); } else { MessageBox.Show("Date Invalide ! "); } } catch (SqliteException er) { MessageBox.Show("Exista deja un utilizator cu acest username ! "); UsernameBox.Text = ""; PasswordBox.Text = ""; } }