private void GorevliEkran_FormClosed(object sender, FormClosedEventArgs e)
        {
            GirisForm grs = new GirisForm();

            grs.Show();
        }
        private void KullaniciGirisForm_FormClosed(object sender, FormClosedEventArgs e)
        {
            GirisForm grs = new GirisForm();

            grs.Show();
        }