private void addClick(object sender, RoutedEventArgs e)
{
if (TaskField.Text == string.Empty)
{
MessageBox.Show("Please enter a new task.");
return;
}
if (App.ViewModel.ActiveToDoCateg == null)
{
MessageBox.Show("The current category is null");
return;
}
using (ToDoDataContext ToDoDB = new ToDoDataContext("Data Source=isostore:/ToDo.sdf"))
{
ToDoItem newItem = new ToDoItem
{
ItemName = TaskField.Text,
_categoryId = App.ViewModel.ActiveToDoCateg.Id,
IsComplete = false
};
ToDoDB.Items.InsertOnSubmit(newItem);
ToDoDB.SubmitChanges();
MessageBox.Show("Your task was added successfully!");
this.NavigationService.Navigate(new Uri("/TodoItems.xaml", UriKind.Relative));
}
}
private void addCategoryClick(object sender, RoutedEventArgs e)
{
if (CategoryField.Text == string.Empty)
{
MessageBox.Show("Please enter a name for your new category.");
return;
}
using (ToDoDataContext ToDoDB = new ToDoDataContext("Data Source=isostore:/ToDo.sdf"))
{
ToDoCategory newCategory = new ToDoCategory
{
Name = CategoryField.Text
};
//check if it already exists by iterating through all
IList<ToDoCategory> categories = this.GetCategories();
foreach (ToDoCategory todoCateg in categories)
{
if (todoCateg.Name.Equals(newCategory.Name))
{
MessageBox.Show("The category already exists");
return;
}
}
ToDoDB.Categories.InsertOnSubmit(newCategory);
ToDoDB.SubmitChanges();
MessageBox.Show("Your new category has been added successfully!");
this.NavigationService.Navigate(new Uri("/Todo.xaml", UriKind.Relative));
}
}
/// <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:/ToDo.sdf";
// Create the database if it does not exist.
using (ToDoDataContext db = new ToDoDataContext(DBConnectionString))
{
if (db.DatabaseExists() == false)
{
// Create the local database.
db.CreateDatabase();
// Prepopulate the categories.
db.Categories.InsertOnSubmit(new ToDoCategory { Name = "Home" });
db.Categories.InsertOnSubmit(new ToDoCategory { Name = "Work" });
db.Categories.InsertOnSubmit(new ToDoCategory { Name = "School" });
// Save categories to the database.
db.SubmitChanges();
}
}
// Create the ViewModel object.
viewModel = new ToDoViewModel(DBConnectionString);
// Query the local database and load observable collections.
viewModel.LoadCollectionsFromDatabase();
}
public IList<ToDoItem> getItems()
{
IList<ToDoItem> itemsList = null;
using (ToDoDataContext TodoDB = new ToDoDataContext("Data Source=isostore:/ToDo.sdf"))
{
IQueryable<ToDoItem> query = from item in TodoDB.Items select item;
itemsList = query.ToList();
}
return itemsList;
}
public IList<ToDoCategory> GetCategories()
{
IList<ToDoCategory> categoryList = null;
using (ToDoDataContext context = new ToDoDataContext("Data Source=isostore:/ToDo.sdf"))
{
IQueryable<ToDoCategory> query = from c in context.Categories select c;
categoryList = query.ToList();
}
return categoryList;
}
// Class constructor, create the data context object.
public ToDoViewModel(string toDoDBConnectionString)
{
toDoDB = new ToDoDataContext(toDoDBConnectionString);
}
