/// <summary> /// Preserves state associated with this page in case the application is suspended or the /// page is discarded from the navigation cache. Values must conform to the serialization /// requirements of <see cref="SuspensionManager.SessionState"/>. /// </summary> /// <param name="navigationParameter">The parameter value passed to /// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested. /// </param> /// <param name="sender">The source of the event; typically <see cref="NavigationHelper"/></param> /// <param name="e">Event data that provides an empty dictionary to be populated with /// serializable state.</param> private void navigationHelper_SaveState(object sender, SaveStateEventArgs e) { //if (this.itemsViewSource.View != null) //{ // var selectedItem = (ItemModel)this.itemsViewSource.View.CurrentItem; // if (selectedItem != null) e.PageState["SelectedItem"] = selectedItem.Id; //} }
/// <summary> /// Preserves state associated with this page in case the application is suspended or the /// page is discarded from the navigation cache. Values must conform to the serialization /// requirements of <see cref="SuspensionManager.SessionState" />. /// </summary> /// <param name="sender">The source of the event; typically <see cref="NavigationHelper" /></param> /// <param name="e"> /// Event data that provides an empty dictionary to be populated with /// serializable state. /// </param> private async void navigationHelper_SaveState(object sender, SaveStateEventArgs e) { var ds = this.DataContext as SiteViewModel; if (ds != null) { e.PageState["CurrentSite"] = ds.CurrentSite.Id; e.PageState["SelectedIndex"] = PnlPivot.SelectedIndex; var result = await JsonConvert.SerializeObjectAsync(ServiceManager.Sites); await StringIOExtensions.WriteToFile(result, "data.txt"); } }
/// <summary> /// Preserves state associated with this page in case the application is suspended or the /// page is discarded from the navigation cache. Values must conform to the serialization /// requirements of <see cref="SuspensionManager.SessionState"/>. /// </summary> /// <param name="sender">The source of the event; typically <see cref="NavigationHelper"/></param> /// <param name="e">Event data that provides an empty dictionary to be populated with /// serializable state.</param> private void navigationHelper_SaveState(object sender, SaveStateEventArgs e) { }