private void ListLibraryBooks_SelectedIndexChanged(object sender, EventArgs e)
{
if (mode != 0)
{
mode = 0;
TransferBooks.Clear();
StringsToSearch.Clear();
}
if (ListLibraryBooks.SelectedIndex != -1)
{
Book book = library.GetBookByIndex(ListLibraryBooks.SelectedIndex);
if (book != null && !TransferBooks.Contains(book))
{
TransferBooks.Add(book);
TransferBooksList.Items.Add(book.Name + " " + book.Author);
}
}
RefreshForm();
}