/// <summary>
/// This constructor istantiates the data context.
/// </summary>
/// <param name="DBConnectionString">The DB connection string to pass to the data context.</param>
public LibraryViewModel(string DBConnectionString)
{
_DataContext = new LibraryDataContext(DBConnectionString);
}
/// <summary>
/// Constructor for the Application object.
/// </summary>
public App()
{
// Global handler for uncaught exceptions.
UnhandledException += Application_UnhandledException;
// Standard Silverlight initialization
InitializeComponent();
// Phone-specific initialization
InitializePhoneApplication();
// Show graphics profiling information while debugging.
if (System.Diagnostics.Debugger.IsAttached)
{
// Display the current frame rate counters.
Application.Current.Host.Settings.EnableFrameRateCounter = true;
// Show the areas of the app that are being redrawn in each frame.
//Application.Current.Host.Settings.EnableRedrawRegions = true;
// Enable non-production analysis visualization mode,
// which shows areas of a page that are handed off to GPU with a colored overlay.
//Application.Current.Host.Settings.EnableCacheVisualization = true;
// Disable the application idle detection by setting the UserIdleDetectionMode property of the
// application's PhoneApplicationService object to Disabled.
// Caution:- Use this under debug mode only. Application that disables user idle detection will continue to run
// and consume battery power when the user is not using the phone.
PhoneApplicationService.Current.UserIdleDetectionMode = IdleDetectionMode.Disabled;
}
// Specify the local database connection string.
string DBConnectionString = "Data Source=isostore:/Transfer.sdf";
// Create the database if it does not exist.
using (TransferDataContext<AbstractTransfer> db = new TransferDataContext<AbstractTransfer>(DBConnectionString))
{
if (db.DatabaseExists() == false)
{
// Create the local database.
db.CreateDatabase();
AbstractTransfer MilkyWay = new DownloadTransfer { TransferUrl = @"http://www.cfa.harvard.edu/image_archive/2009/1/hires.jpg", Path = "/space", Filename = "milky_way_highres.jpg" };
// Prepopulate with a page
db.Transfers.InsertOnSubmit(MilkyWay);
// Save pages to the database.
db.SubmitChanges();
}
}
// Create the ViewModel object.
_TransferViewModel = new TransferViewModel<AbstractTransfer>(DBConnectionString);
// Query the local database and load observable collections.
_TransferViewModel.LoadCollectionsFromDatabase();
// Transfer manager
_TransferManager = new TransferManager.TransferManager(_TransferViewModel);
// Create the database if it does not yet exist.
using (LibraryDataContext db = new LibraryDataContext("isostore:/Library.sdf"))
{
if (db.DatabaseExists() == false)
{
// Create the database.
db.CreateDatabase();
}
}
// Create the LibraryViewModel object.
_LibraryViewModel = new LibraryViewModel("isostore:/Library.sdf");
// Query the local database and load observable collections.
_LibraryViewModel.LoadCollectionsFromDatabase();
}