private void btnAceptar_Click(object sender, EventArgs e) { cnx = new SqlConnection(); cnx.ConnectionString = cdn; cmd = new SqlCommand(); cmd.Connection = cnx; Conceptos.Core.ConceptosHelper ch = new Conceptos.Core.ConceptosHelper(); ch.Command = cmd; try { cnx.Open(); ch.actualizaConceptoTrabajador(_idEmpleado, GLOBALES.IDEMPRESA, int.Parse(cmbPeriodo.SelectedValue.ToString())); cnx.Close(); cnx.Dispose(); } catch (Exception) { MessageBox.Show("Error: Al actualizar los conceptos.", "Error"); cnx.Dispose(); } }