private void dgvRegistro_CellEndEdit(object sender, DataGridViewCellEventArgs e) { try { pr.CuadroNotas(dgvRegistro, cbGrado, cbMateria, cbSeccion, rbt1, rbt2, rbt3, rbp35, rbs35, rb30); } catch (Exception) { MessageBox.Show("Ingrese datos válidos", "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error); dgvRegistro.CurrentCell.Value = "0"; pr.CuadroNotas(dgvRegistro, cbGrado, cbMateria, cbSeccion, rbt1, rbt2, rbt3, rbp35, rbs35, rb30); } }