private void Button_Click(object sender, RoutedEventArgs e)
{
Window3 list = new Window3();
list.Show();
this.Close();
}
private void Button_Click_1(object sender, RoutedEventArgs e)
{
MessageBox.Show("You succesfully deleted" + " " + booklist.SelectedItem.ToString() + " " + "from your list!");
Window2.booklst.Remove(booklist.SelectedItem.ToString());
booklist.Items.Remove(booklist.SelectedItem);
Window3 window3 = new Window3();
window3.Show();
this.Close();
}