private void btn_validate_Click(object sender, EventArgs e)
{
DialogResult dialog = MessageBox.Show("Tem a certeza que pretende validar?", "", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (dialog == DialogResult.Yes)
{
_serv.UpdateValidStatus(_id, !_isValid);
MessageBox.Show("Validado com sucesso.", "", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
Close();
}