private void btnRegister_Click(object sender, EventArgs e) { if (txtName.Text == "" || txtEmail.Text == "" || txtPassword.Text == "" || (!rbtnAdmin.Checked && !rbtnEmployee.Checked)) { MessageBox.Show("Fill all fields"); } else { try { eUserType userType; if (rbtnAdmin.Checked) { userType = eUserType.admin; } else { userType = eUserType.employee; } User user = new User(txtName.Text, txtEmail.Text, txtPassword.Text, userType); bs.AddUser(user); txtName.Text = ""; txtEmail.Text = ""; txtPassword.Text = ""; Login login = Login.LoginInstance; this.Hide(); login.Show(); } catch (Exception ex) { MessageBox.Show(ex.Message); } } }