private void BtnRemove_Click(object sender, EventArgs e)
        {
            var selected = wordBindingSource.Current as Word;

            if (selected != null)
            {
                var removedMemorization = _memorizationRepository.Get(x => x.WordId == selected.ID && x.SetsId == _set.ID);
                _memorizationRepository.Delete(removedMemorization.ID);
                _word = _wordRepository.ListMemorizationWord(_set.ID, SessionData.loginUserId); wordBindingSource.DataSource = _word;
                MessageBox.Show("Kelime / Cümle Ezberlenenlerden Kaldırıldı.");
                lblMemCount.Text = wordBindingSource.List.Count.ToString() + " Adet Kelime Ezberlenmiş.";
            }
        }