public void KelimeEkle(Kelime kelime)
        {
            SqlConnection _baglanti = new SqlConnection(@"Data Source=DESKTOP-UP3GCNR;Initial Catalog=Kelimeler;Integrated Security=True");

            if (_baglanti.State == System.Data.ConnectionState.Closed)
            {
                _baglanti.Open();
            }

            SqlCommand command = new SqlCommand("INSERT into TumKelimeler values(@turkce,@ingilizce,@sozcuktur,@trcumle,@ingcumle,@tarih)", _baglanti);

            command.Parameters.AddWithValue("@turkce", kelime.turkce);
            command.Parameters.AddWithValue("@ingilizce", kelime.ingilizce);
            command.Parameters.AddWithValue("@sozcuktur", kelime.sozcuktur);
            command.Parameters.AddWithValue("@trcumle", kelime.trcumle);
            command.Parameters.AddWithValue("@ingcumle", kelime.ingcumle);
            command.Parameters.AddWithValue("@tarih", kelime.tarih);
            command.ExecuteNonQuery();
            _baglanti.Close();
        }