/// <summary> /// Constructor for the Application object. /// </summary> public App() { // Global handler for uncaught exceptions. UnhandledException += Application_UnhandledException; // Standard XAML initialization InitializeComponent(); // Phone-specific initialization InitializePhoneApplication(); // Language display initialization InitializeLanguage(); // Show graphics profiling information while debugging. if (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; // Prevent the screen from turning off while under the debugger by disabling // the application's idle detection. // 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:/CalorieCounter.sdf"; // Create the database if it does not exist. using (CalorieCounterDataContext db = new CalorieCounterDataContext(DBConnectionString)) { if (db.DatabaseExists() == false) { // Create the local database. db.CreateDatabase(); // Prepopulate the categories. db.Days.InsertOnSubmit(new Day { Date = DateTime.Today }); // Save categories to the database. db.SubmitChanges(); } } // Create the ViewModel object. viewModel = new CalorieCounterViewModel(DBConnectionString); // Query the local database and load observable collections. viewModel.LoadCollectionsFromDatabase(); }
// Class constructor, create the data context object. public CalorieCounterViewModel(string calorieCounterDBConnectionString) { calorieCounterDB = new CalorieCounterDataContext(calorieCounterDBConnectionString); }