public static void OpenBookWindow()
{
AddBookWindow win = new AddBookWindow();
win.Show();
}
private void BtnAddBook_Click(object sender, RoutedEventArgs e)
{
var addBookWindow = new AddBookWindow();
addBookWindow.Show();
}
private void AddBook_Click(object sender, System.Windows.RoutedEventArgs e)
{
AddBookWindow addBook = new AddBookWindow();
addBook.Show();
}