/// <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(); }