private void button2_Click(object sender, EventArgs e) { LichTrinh.Cap_Nhap(dgDieuXe.CurrentRow.Cells[0].Value.ToString(), txtDiaDiem.Text, cbTrangThai.Text, txtGhiChu.Text); dgDinhVi.DataSource = LichTrinh.HienThi(dgDieuXe.CurrentRow.Cells[0].Value.ToString()); }