/// <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");
var json = await JsonConvert.DeserializeObjectAsync<ObservableCollection<SiteModel>>(result);
if (json != null)
{
ServiceManager.Sites = json;
}
var ds = this.DataContext as PageViewModel;
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 PageViewModel;
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="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)
{
if (e.PageState != null && e.PageState.ContainsKey("SelectedItem"))
{
var result = await StringIOExtensions.ReadFromFile("data.txt");
var json = await JsonConvert.DeserializeObjectAsync<ObservableCollection<SiteModel>>(result);
if (json != null)
{
ServiceManager.Sites = json;
}
var ds = this.DataContext as ItemViewModel;
if (ds != null)
{
var itemId = e.PageState["SelectedItem"].ToString();
ds.CurrentPage = await ServiceManager.GetPageAsync(itemId);
ds.SelectedItem = await ServiceManager.GetItemAsync(itemId);
}
e.PageState["SelectedItem"] = null;
}
else
{
var itemId = e.NavigationParameter.ToString();
PageModel selectedPage = await ServiceManager.GetPageAsync(itemId);
if (selectedPage != null)
{
var ds = DataContext as ItemViewModel;
if (ds != null)
{
ds.CurrentPage = selectedPage;
ds.SelectedItem = selectedPage.Items.FirstOrDefault(x => x.Id.Equals(itemId));
}
}
}
}
/// <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);
}
}