private void BtnOgrenciGiris_Click(object sender, EventArgs e) { try { Ogrenci o = new Ogrenci(); o.OkulNo = txtOkulNo.Text.Trim(); o.Sifre = txtSifreOgrenci.Text.Trim(); int snc = OgrenciBL.OgrenciSifre(o); if (snc == 1) { OgrenciEkran frm = new OgrenciEkran(); ad = txtOkulNo.Text; frm.ShowDialog(); this.Hide(); } else { MessageBox.Show("Bilgilerinizi kontrol ediniz", "Hata!!", MessageBoxButtons.OK, MessageBoxIcon.Warning); Application.Restart(); } } catch (SqlException ex) { MessageBox.Show("Test" + ex.Number); throw; } }