/// <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) { }
/// <summary> /// Used to save states when leaving from the page /// </summary> private void navigationHelper_SaveState(object sender, SaveStateEventArgs e) { if (this.RoadsViewSource.View == null) return; e.PageState["QueryText"] = SearchBox.QueryText; e.PageState["UnfinishedFilterState"] = RoadListUnfinishedFilterCheckBox.IsChecked; e.PageState["DateFilterState"] = RoadListDateFilterCheckBox.IsChecked; e.PageState["DateFilterData"] = RoadListDateFilterDatePicker.Date; e.PageState["AllRoads"] = ViewModel.AllRoads; }