public HomePageViewModel(INavigationService navigationService, IBooksDB booksDB)
{
_booksDB = booksDB;
/* withourt IOC INagavigationService has to new up a concrete version of service
* _navigationService= new SomeService()*/
_navigationService = navigationService;
addbookscmd = new Command(addbooksimplementation);
viewbookscmd = new Command(ViewBooksFromDb);
deletebookscmd = new Command(DeleteBooksFromDB);
}
public ViewBooksViewModel(IBooksDB BooksDB)
{
_booksDB = BooksDB;
BooksList();
}
public AddBooksViewModel(IBooksDB bookDB, INavigationService navigationService)
{
_navigationService = navigationService;
AddBookCommand = new Command(AddBookToDb);
_bookDB = bookDB;
}