BeFriend.ViewModel.CallandSettingsPageViewModel.PasswordVaultRemoverMethod C# (CSharp) Метод

        private async void PasswordVaultRemoverMethod(object obj)
        {
            switch (int.Parse(obj.ToString()))
            {
                case 1:
                    var vault = new PasswordVault();
                    try
                    {
                        var credentialList = vault.FindAllByUserName("TwitterAccessToken");
                        if (credentialList.Count <= 0) return;
                        var credential = vault.Retrieve("Friend", "TwitterAccessToken");
                        vault.Remove(new PasswordCredential("Friend", "TwitterAccessToken", credential.Password));
                        var credentialList1 = vault.FindAllByUserName("TwitterAccessTokenSecret");
                        if (credentialList1.Count <= 0) return;
                        var credential1 = vault.Retrieve("Friend", "TwitterAccessTokenSecret");
                        vault.Remove(new PasswordCredential("Friend", "TwitterAccessTokenSecret", credential1.Password));
                        TwitterPlusIconVisibility = Visibility.Visible;
                        TwitterRemoveIconVisibility = Visibility.Collapsed;
                    }

                    catch (Exception ex)
                    {
                        Debug.WriteLine(ex);
                    }
                    break;

                case 2:
                    //var sess = FBSession.ActiveSession;
                    //await sess.LogoutAsync();
                    //FacebookPlusIconVisibility = Visibility.Visible;
                    //FacebookRemoveIconVisibility = Visibility.Collapsed;
                    break;

                default:
                    break;
            }
            RaisePropertyChanged(() => TwitterRemoveIconVisibility);
            RaisePropertyChanged(() => TwitterPlusIconVisibility);
            RaisePropertyChanged(()=>FacebookPlusIconVisibility);
            RaisePropertyChanged(()=>FacebookRemoveIconVisibility);
        }