private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e) { string maSV = dgvDanhSachSV.Rows[e.RowIndex].Cells[0].Value.ToString(); txtMaSV.ReadOnly = true; SinhVien svSua = SinhVien.TimSinhVienTheoMa(maSV); SetInputForm(svSua); }