/// <summary> /// Событие при вводе текста в поле "SearchAdminBooksBox" /// </summary> private void SearchAdminBooksBox_TextChanged(object sender, TextChangedEventArgs e) { BookDataGrid.ItemsSource = booksController.BooksMatchUpInfoOutput(SearchAdminBooksBox.Text); if (SearchAdminBooksBox.Text == string.Empty) { BookDataGrid.ItemsSource = booksController.BooksInfoOutput(); } }