async public void removebook(object s, EventArgs args)
{
if (await DisplayAlert("Remove Book", "Are you sure want to remove this book from the library?", "Yes", "No"))
{
_bookdb.DeleteBook(book.Id);
NavigationPage navPage = (NavigationPage)Application.Current.MainPage;
IReadOnlyList <Page> navStack = navPage.Navigation.NavigationStack;
int lastIndex = navStack.Count - 2;
BookListPage bookListPage = navStack[lastIndex] as BookListPage;
bookListPage.RemoveBook(book);
// await DisplayAlert("Book Removed!", "Book has been removed from your library.", "OK");
await Navigation.PopAsync();
}
}
public void DeleteBook(Book book)
{
BookDB.DeleteBook(book);
}