/// <summary>
/// Populates the page with content passed during navigation. Any saved state is also
/// provided when recreating a page from a prior session.
/// </summary>
/// <param name="sender">
/// The source of the event; typically <see cref="NavigationHelper" />
/// </param>
/// <param name="e">
/// Event data that provides both the navigation parameter passed to
/// <see cref="Frame.Navigate(Type, Object)" /> when this page was initially requested and
/// a dictionary of state preserved by this page during an earlier
/// session. The state will be null the first time a page is visited.
/// </param>
private async void navigationHelper_LoadState(object sender, LoadStateEventArgs e)
{
if (e.PageState != null && e.PageState.ContainsKey("CurrentSite"))
{
var result = await StringIOExtensions.ReadFromFile("data.txt");
ServiceManager.Sites = await JsonConvert.DeserializeObjectAsync<ObservableCollection<SiteModel>>(result);
var ds = this.DataContext as SiteViewModel;
if (ds != null)
{
await ds.LoadData(e.PageState["CurrentSite"].ToString(), null);
if (e.PageState.ContainsKey("SelectedIndex"))
{
ds.CurrentSite.SelectedIndex = e.PageState["SelectedIndex"].ToInt();
PnlPivot_OnLoaded(null,null);
}
}
e.PageState["CurrentSite"] = null;
e.PageState["SelectedIndex"] = null;
}
else
{
var ds = DataContext as SiteViewModel;
if (ds != null)
{
await ds.LoadData(e.NavigationParameter.ToString(), null);
}
}
}
/// <summary>
/// Populates the page with content passed during navigation. Any saved state is also
/// provided when recreating a page from a prior session.
/// </summary>
/// <param name="sender">
/// The source of the event; typically <see cref="NavigationHelper"/>
/// </param>
/// <param name="e">Event data that provides both the navigation parameter passed to
/// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested and
/// a dictionary of state preserved by this page during an earlier
/// session. The state will be null the first time a page is visited.</param>
private async void navigationHelper_LoadState(object sender, LoadStateEventArgs e)
{
var clickedItem = (ItemModel) e.NavigationParameter;
var group = await ServiceManager.GetPageAsync(clickedItem.Parent.PageIndex);
this.DefaultViewModel["Group"] = group;
if (group != null)
{
this.DefaultViewModel["Items"] = group.Items;
}
this.DefaultViewModel["SelectedItem"] = clickedItem;
if (e.PageState == null)
{
this.itemListView.SelectedItem = null;
// When this is a new page, select the first item automatically unless logical page
// navigation is being used (see the logical page navigation #region below.)
if (!this.UsingLogicalPageNavigation() && this.itemsViewSource.View != null)
{
this.itemsViewSource.View.MoveCurrentToFirst();
}
}
else
{
// Restore the previously saved state associated with this page
if (e.PageState.ContainsKey("SelectedItem") && this.itemsViewSource.View != null)
{
var selectedItem = await SampleDataSource.GetItemAsync((String)e.PageState["SelectedItem"]);
this.itemsViewSource.View.MoveCurrentTo(selectedItem);
}
}
}
/// <summary>
/// Populates the page with content passed during navigation. Any saved state is also
/// provided when recreating a page from a prior session.
/// </summary>
/// <param name="navigationParameter">The parameter value passed to
/// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested.
/// </param>
/// <param name="pageState">A dictionary of state preserved by this page during an earlier
/// session. This will be null the first time a page is visited.</param>
private async void navigationHelper_LoadState(object sender, LoadStateEventArgs e)
{
var ds = this.DataContext as SearchResultViewModel;
if (ds != null)
{
ds.QueryText = e.NavigationParameter as String;
await ds.LoadData();
}
}
/// <summary>
/// Populates the page with content passed during navigation. Any saved state is also
/// provided when recreating a page from a prior session.
/// </summary>
/// <param name="sender">
/// The source of the event; typically <see cref="NavigationHelper"/>
/// </param>
/// <param name="e">Event data that provides both the navigation parameter passed to
/// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested and
/// a dictionary of state preserved by this page during an earlier
/// session. The state will be null the first time a page is visited.</param>
private async void navigationHelper_LoadState(object sender, LoadStateEventArgs e)
{
//var titleDetailsViewModel = DataContext as SiteViewModel;
//if (titleDetailsViewModel != null)
//{
// var parameters = e.NavigationParameter as List<string>;
// if (parameters != null && parameters.Count == 2)
// {
// titleDetailsViewModel.LoadData(parameters[0], parameters[1]);
// }
//}
// TODO: Create an appropriate data model for your problem domain to replace the sample data
//var sampleDataGroups = await SampleDataSource.GetGroupsAsync();
//this.DefaultViewModel["Items"] = sampleDataGroups;
}
/// <summary>
/// Populates the page with content passed during navigation. Any saved state is also
/// provided when recreating a page from a prior session.
/// </summary>
/// <param name="sender">
/// The source of the event; typically <see cref="NavigationHelper"/>
/// </param>
/// <param name="e">Event data that provides both the navigation parameter passed to
/// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested and
/// a dictionary of state preserved by this page during an earlier
/// session. The state will be null the first time a page is visited.</param>
private async void navigationHelper_LoadState(object sender, LoadStateEventArgs e)
{
var ds = DataContext as MainViewModel;
if (ds != null)
{
await ds.LoadData(null);
}
}
