private void btnClientAdd_Click(object sender, EventArgs e) { try { if (partnerController.CheckPartner(txbPartnerDNI.Text) == null) { Partner partner = new Partner(partnerID, lastName, firstName, DNI, address, phone); partner.LastName = txbPartnerLastName.Text; partner.FirstName = txbPartnerFirstName.Text; partner.DNI = txbPartnerDNI.Text; partner.Address = txbClientAddress.Text; partner.Phone = txbClientPhone.Text; if (partnerController.AddPartner(partner) != null) { MessageBox.Show("Se agregó un cliente con éxito."); } } else { MessageBox.Show("Ya existe una persona con ese DNI."); } updateAll(); } catch (Exception ex) { error = ex.Message; MessageBox.Show(error); } }