/// The methods provided in this section are simply used to allow
/// NavigationHelper to respond to the page's navigation methods.
///
/// Page specific logic should be placed in event handlers for the
/// <see cref="Common.NavigationHelper.LoadState"/>
/// and <see cref="Common.NavigationHelper.SaveState"/>.
/// The navigation parameter is available in the LoadState method
/// in addition to page state preserved during an earlier session.
protected override void OnNavigatedTo(NavigationEventArgs e)
{
ComicQuery comicQuery = e.Parameter as ComicQuery;
if (comicQuery != null)
{
comicQueryManager.UpdateQueryResults(comicQuery);
pageTitle.Text = comicQueryManager.Title;
}
navigationHelper.OnNavigatedTo(e);
}
private void OnListViewItemClick(object sender, ItemClickEventArgs e)
{
ComicQuery query = e.ClickedItem as ComicQuery;
if (query != null)
{
SuspensionManager.CurrentQuery = query.Title;
if (query.Title == "All comics in the collection")
{
this.Frame.Navigate(typeof(QueryDetailZoom), query);
}
else
{
this.Frame.Navigate(typeof(QueryDetail), query);
}
}
}
public void UpdateQueryResults(ComicQuery query)
{
Title = query.Title;
switch (query.Title)
{
case "LINQ makes queries easy":
LinqMakesQueryEasy();
break;
case "Expensive comics":
ExpensiveComics();
break;
case "LINQ is versatile 1":
LinqIsVersatile1();
break;
case "LINQ is versatile 2":
LinqIsVersatile2();
break;
case "LINQ is versatile 3":
LinqIsVersatile3();
break;
case "Group comics by price range":
GroupComicsByRange();
break;
case "Join purchases with prices":
JoinPurchasesWithPrices();
break;
case "All comics in the collection":
AllComics();
break;
}
}
/// <summary>
/// Invoked when the application is launched normally by the end user. Other entry points
/// will be used when the application is launched to open a specific file, to display
/// search results, and so forth.
/// </summary>
/// <param name="e">Details about the launch request and process.</param>
async protected override void OnLaunched(LaunchActivatedEventArgs e)
{
#if DEBUG
if (System.Diagnostics.Debugger.IsAttached)
{
this.DebugSettings.EnableFrameRateCounter = true;
}
#endif
Frame rootFrame = Window.Current.Content as Frame;
// Do not repeat app initialization when the Window already has content,
// just ensure that the window is active
if (rootFrame == null)
{
// Create a Frame to act as the navigation context and navigate to the first page
rootFrame = new Frame();
// TODO: change this value to a cache size that is appropriate for your application
rootFrame.CacheSize = 1;
if (e.PreviousExecutionState == ApplicationExecutionState.Terminated)
{
// TODO: Load state from previously suspended application
await SuspensionManager.RestoreAsync();
}
// Place the frame in the current Window
Window.Current.Content = rootFrame;
}
if (rootFrame.Content == null)
{
#if WINDOWS_PHONE_APP
// Removes the turnstile navigation for startup.
if (rootFrame.ContentTransitions != null)
{
this.transitions = new TransitionCollection();
foreach (var c in rootFrame.ContentTransitions)
{
this.transitions.Add(c);
}
}
rootFrame.ContentTransitions = null;
rootFrame.Navigated += this.RootFrame_FirstNavigated;
#endif
// When the navigation stack isn't restored navigate to the first page,
// configuring the new page by passing required information as a navigation
// parameter
rootFrame.Navigate(typeof(MainPage), e.Arguments);
if (!String.IsNullOrEmpty(SuspensionManager.CurrentQuery))
{
var currentQuerySequenz = from query in new ComicQueryManager().AvailableQueries where query.Title == SuspensionManager.CurrentQuery select query;
if (currentQuerySequenz.Count() == 1)
{
ComicQuery query = currentQuerySequenz.First();
if (query != null)
{
if (query.Title == "All comics in the collection")
{
rootFrame.Navigate(typeof(QueryDetailZoom), query);
}
else
{
rootFrame.Navigate(typeof(QueryDetail), query);
}
}
}
}
}
// Ensure the current window is active
Window.Current.Activate();
}