/// <summary>
/// Construct an instance of the MainPage view
/// </summary>
public MainPage()
{
InitializeComponent();
// Setup custom strings to replace some of PivotViewer's default strings (comment this line to use all defaults)
System.Windows.Pivot.PivotViewer.SetResourceManager(SampleLocalizedStrings.ResourceManager);
// Load the initial collection
string initialCollectionUri;
if (!App.Current.Host.InitParams.TryGetValue("initialCollectionUri", out initialCollectionUri))
{
// Otherwise use the default startup collection
initialCollectionUri = s_defaultStartupCollectionUri.ToString();
}
PivotViewer.LoadCollection(initialCollectionUri, string.Empty);
PivotViewer.CollectionLoadingFailed += new EventHandler <CollectionErrorEventArgs>(PivotViewer_CollectionLoadingFailed);
// Enable the shopping cart (comment this line to disable the shopping cart)
ShoppingCart.Create(PivotViewer);
// Enable the travel log (comment this line to disable the travel log)
TravelLog.Create(PivotViewer, new Uri(initialCollectionUri));
}
/// <summary>
/// Create a singleton instance of the TravelLog and connect it to a PivotViewer. Because TravelLog
/// reads/writes App.Current.Host.NavigationState, there should only be one instance of TravelLog in
/// an application.
/// </summary>
public static void Create(PivotViewer pivotViewer, Uri initialCollectionUri)
{
if (s_instance != null)
{
throw new InvalidOperationException("TravelLog interacts with the application state, there should only be one instance in an application");
}
if (pivotViewer.CollectionUri != null)
{
throw new InvalidOperationException("TravelLog should be connected to a PivotViewer before it has loaded a collection");
}
s_instance = new TravelLog(pivotViewer, initialCollectionUri);
}
