/// <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 async void navigationHelper_SaveState(object sender, SaveStateEventArgs e)
{
var ds = this.DataContext as ItemViewModel;
if (ds != null)
{
if (ds.SelectedItem != null)
{
e.PageState["SelectedItem"] = ds.SelectedItem.Id;
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 async void navigationHelper_SaveState(object sender, SaveStateEventArgs e)
{
//var ds = this.DataContext as PageViewModel;
//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");
//}
}
