private void SaveExecute(object parametar) { var passwordBox = parametar as PasswordBox; var password = passwordBox.Password; Doctor.DoctorPassword = password; try { if (service.AddDoctor(Doctor) != null) { //isUpdateDoctor = true; DoctorWindow window = new DoctorWindow(Doctor); window.Show(); addDoctor.Close(); } } catch (Exception ex) { MessageBox.Show(ex.ToString()); } }