private void button3_Click(object sender, EventArgs e) { DialogResult result = MessageBox.Show("Kayıt Silinsin mi?", "Kayıt Silme", MessageBoxButtons.YesNoCancel); if (result == DialogResult.Yes) { DataRow r = dt_kayit.Rows[dataGridView1.SelectedRows[0].Index]; int id = Convert.ToInt32(r["ID"].ToString()); Kayit.Sil(id.ToString()); VerileriYukle(); } }