/// <summary>
/// opens the singelton instance of addbook form
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void AddBook_Click(object sender, EventArgs e)
{
AddBooks addBooks = AddBooks.Instance();
Utils.SwitchBetweenWindows(this, addBooks);
// addBooks.ShowDialog();
}
private void EditBook_Click(object sender, EventArgs e)
{
AddBooks addBooks = AddBooks.Instance(book);
Utils.SwitchBetweenWindows(this, addBooks);
}