void Dictionary_RowChanged(object sender, DataRowChangeEventArgs e)
        {
            switch (e.Action)
            {
                case DataRowAction.Add:
                case DataRowAction.Change:
                    LanguageData dataLayer = new LanguageData();
                    dsLanguageData.DictionaryRow dict = toDictionaryRow((dsDictionary.DictionaryRow) e.Row);

                    if (isValidRow(dict))
                    {
                        int i = dataLayer.InsertOrUpdateDictionary(dict);
                        if (i > 0)
                        {
                            if (DataChanged != null)
                                DataChanged(this, new EventArgs());
                        }
                        dsDictionary.AcceptChanges();
                    }

                    break;
            }
        }