/// <summary>
/// Constructor for the Application object.
/// </summary>
public App()
{
//specify the local database connection string
string DBConnectionString = "Data Source=isostore:/AllWeight.sdf";
//create the database if it does not exist
using (allWeightDataContext db = new allWeightDataContext(DBConnectionString))
{
if (db.DatabaseExists() == false)
{
db.CreateDatabase();
db.SubmitChanges();
}
}
//create the view model object
viewModel = new allWeightViewModel(DBConnectionString);
//query the local database and load the collections
viewModel.LoadEntriesFromDatabase();
// 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;
}
}
//class constructor , creat the data context object here
public allWeightViewModel(string allWeightConnectionString)
{
allWeightDB = new allWeightDataContext(allWeightConnectionString);
_isloaded = false;
}