private void button1_Click(object sender, EventArgs e)
        {
            foreach (CDCDS.CDC_BRANDSRow riga in _DS.CDC_BRANDS.Rows)
            {
                if (riga.RowState == DataRowState.Added || riga.RowState == DataRowState.Modified)
                {
                    riga.UTENTE          = Contesto.Utente.FULLNAMEUSER;
                    riga.DATARIFERIMENTO = DateTime.Now;
                }
            }

            CDCBLL bll = new CDCBLL();

            bll.SalvaDatiBrands(_DS);
            _DS.AcceptChanges();

            _DS.CDC_BRANDS.Clear();
            bll.CaricaBrands(_DS);

            DataTable listBrands = _DS.CDC_BRANDS.Clone();

            listBrands = _DS.CDC_BRANDS.Copy();

            DataGridViewComboBoxColumn comboCol = (DataGridViewComboBoxColumn)dgvEnti.Columns["BRAND"];

            comboCol.DataSource = listBrands;
        }