/// <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;
}
#region Developer
// Create the database if it does not exist.
using (ToDoDataContext db = new ToDoDataContext(DBConnectionString))
{
if (db.DatabaseExists() == false)
{
// Create the local database.
db.CreateDatabase();
//db.AllItems.InsertOnSubmit(new ToDoItem() { ItemName = "AA测试", IsComplete = false });
//db.SubmitChanges();
}
}
// Create the ViewModel object.
viewModel = new ToDoViewModel(DBConnectionString);
// Query the local database and load observable collections.
viewModel.LoadCollectionsFromDatabase();
#endregion
}
// Code to execute when the application is closing (eg, user hit Back)
// This code will not execute when the application is deactivated
private void Application_Closing(object sender, ClosingEventArgs e)
{
using (ToDoDataContext db = new ToDoDataContext(DBConnectionString))
{
if (db.DatabaseExists()) db.DeleteDatabase();
}
}
// Class constructor, create the data context object.
public ToDoViewModel(string toDoDBConnectionString)
{
Context = new ToDoDataContext(toDoDBConnectionString);
}
