// Remove a to-do task item from the database and collections.
public void DeleteToDoItem(ToDoItem toDoForDelete)
{
// Remove the to-do item from the data context.
toDoDBContext.Items.DeleteOnSubmit(toDoForDelete);
// Save changes to the database.
toDoDBContext.SubmitChanges();
if (TodayToDoItems.Contains(toDoForDelete))
{
TodayToDoItems.Remove(toDoForDelete);
}
else if (TomorrowToDoItems.Contains(toDoForDelete))
{
TomorrowToDoItems.Remove(toDoForDelete);
}
else if (LaterToDoItems.Contains(toDoForDelete))
{
LaterToDoItems.Remove(toDoForDelete);
}
}
public void ChangeCompletedStatus(ToDoItem item, bool completed)
{
toDoDBContext.SubmitChanges();
if (item == null)
{
return;
}
if (TodayToDoItems.Contains(item))
{
TodayToDoItems.Remove(item);
}
else if (TomorrowToDoItems.Contains(item))
{
TomorrowToDoItems.Remove(item);
}
else if (LaterToDoItems.Contains(item))
{
LaterToDoItems.Remove(item);
}
CompletedToDoItems.Insert(0, item);
}