AdvancedLauncher.UI.Windows.Settings.OnProfileSelectionChanged C# (CSharp) Метод

        private void OnProfileSelectionChanged(object sender, SelectionChangedEventArgs e) {
            if (SelectedProfile == null) {
                return;
            }
            ValidatePaths();
            NotifyPropertyChanged("IsSelectedNotDefault");
            NotifyPropertyChanged("ProfileLauncher");

            LoginData login = null;
            IsPreventLoginChange = true;
            if (Credentials.TryGetValue(SelectedProfile, out login)) {
                if (pbPass != null) {
                    if (login.SecurePassword != null) {
                        pbPass.Password = "empty_pass";
                    } else {
                        pbPass.Clear();
                    }
                }
                if (tbUser != null) {
                    tbUser.Text = login.User;
                }
                if (ManualLoginSupported != null) {
                    ManualLoginSupported.IsChecked = login.IsManual;
                }
            } else {
                if (tbUser != null) {
                    tbUser.Clear();
                }
                if (pbPass != null) {
                    pbPass.Clear();
                }
                if (ManualLoginSupported != null) {
                    ManualLoginSupported.IsChecked = false;
                }
            }
            IsPreventLoginChange = false;
        }