private void LoadPivotItems()
        {
            this.MainPivot.Items.Clear();
            

            /*
            var tablesPage = new TablesPage();
            var tablesPivot = new PivotItem();
            tablesPivot.Header = "tables list";
            tablesPivot.Name = "TablesList";
            tablesPivot.Content = tablesPage;
            tablesPage.ViewModel = this.ViewModel.TablesPageViewModel;
            this.MainPivot.Items.Add(tablesPivot);
             */

            var sampleDataTablesPage = new SampleDataTablePage();
            var sampleDataTablesPivot = new PivotItem();
            sampleDataTablesPivot.Header = "Все Акции";
            sampleDataTablesPivot.Name = "SampleDataRows";
            sampleDataTablesPivot.Content = sampleDataTablesPage;
            sampleDataTablesPage.ViewModel = this.ViewModel.SampleDataTablePageViewModel;
            sampleDataTablesPage.Navigate += this.OnNavigatePage;
            this.MainPivot.Items.Add(sampleDataTablesPivot);

            var listBlobsPage = new ListBlobsPage();
            var listBlobsPivot = new PivotItem();
            listBlobsPivot.Header = "about us";
            listBlobsPivot.Name = "ListBlobs";
            listBlobsPivot.Content = listBlobsPage;
            listBlobsPage.ViewModel = this.ViewModel.ListBlobsPageViewModel;
            //listBlobsPage.TakePhoto += this.OnLaunchCamera;
            this.MainPivot.Items.Add(listBlobsPivot);
            
            var notificationsPage = new NotificationsPage();
            var notificationsPivot = new PivotItem();
            notificationsPivot.Header = "Оповещения";
            notificationsPivot.Name = "PushNotifications";
            notificationsPivot.Content = notificationsPage;
            notificationsPage.ViewModel = this.ViewModel.NotificationsViewModel;
            notificationsPage.BeginPushConnection += this.OnBeginPushConnection;
            notificationsPage.EndPushConnection += this.OnEndPushConnection;
            this.MainPivot.Items.Add(notificationsPivot);             
            
            /*
            var listQueuesPage = new ListQueuesPage();
            var listQueuesPivot = new PivotItem();
            listQueuesPivot.Header = "queues";
            listQueuesPivot.Name = "ListQueuesPage";
            listQueuesPivot.Content = listQueuesPage;
            listQueuesPage.ViewModel = this.ViewModel.ListQueuesPageViewModel;
            listQueuesPage.Navigate += this.OnNavigatePage;
            this.MainPivot.Items.Add(listQueuesPivot);
             */

            this.MainPivot.SelectedItem = sampleDataTablesPivot;
        }