ArcGISWindowsPhoneSDK.MainPage.SwitchLists C# (CSharp) Метод

        private void SwitchLists()
        {
            ContentPanel.Visibility = Visibility.Visible;
            ListTitle.Visibility = Visibility.Visible;

            // Reset the IdentityManager in order not to impact other samples
            ESRI.ArcGIS.Client.IdentityManager.Current.ChallengeMethod = null;
            foreach (IdentityManager.Credential crd in ESRI.ArcGIS.Client.IdentityManager.Current.Credentials)
                ESRI.ArcGIS.Client.IdentityManager.Current.RemoveCredential(crd);

            //if (_lastListIndex != _listIndex)
            //{
            if (_lastListIndex > -1)
                _listBoxes[_lastListIndex].Visibility = Visibility.Collapsed;
            _listBoxes[_listIndex].Visibility = Visibility.Visible;
            ListTitle.Text = (string)_listBoxes[_listIndex].Tag;
            //}

            _lastListIndex = _listIndex;
            CategoryListGrid.Visibility = Visibility.Collapsed;
            (ApplicationBar.Buttons[2] as IApplicationBarIconButton).IsEnabled = true;
        }