private void btnAceptar_Click(object sender, EventArgs e) { try { validarEntidad(); AlumnoService s = new AlumnoService(); if (this.alumno.Id != 0) { s.Update(alumno); } else { s.Insert(alumno); } CommonHelper.ShowInfo("Alumno guardado con éxito."); this.DialogResult = DialogResult.OK; } catch (WarningException ex) { CommonHelper.ShowWarning(ex.Message); } catch (Exception ex) { CommonHelper.ShowError(ex.Message); } }