public bool RemoveWordsDeletedInAdminPanel(List <WordPairForDataGridView> deletedWordPairsForDataGridView)
{
IEnumerable <int> wordPairIdsToRemove = deletedWordPairsForDataGridView.Select(dw => dw.Id);
int removedWordPairsCount = _wordsRepository.RemoveAllWordsByIds(wordPairIdsToRemove);
return(removedWordPairsCount == deletedWordPairsForDataGridView.Count);
}