private void tblKaydetButton_Click(object sender, EventArgs e)
        {
            #region TBLDeğişiki
            UrunBL urunGoster = new UrunBL();
            foreach (DataRow item in dt.Rows)
            {
                Urun urun = new Urun();
                if (item.RowState != DataRowState.Deleted)
                {
                    urun.Urun_kodu = item[0].ToString();
                    urun.Urun_ad   = item[1].ToString();
                    urun.Stok_mik  = Convert.ToInt32(item[2]);
                    urun.Fiyat     = Convert.ToInt32(item[3]);
                }

                switch (item.RowState)
                {
                case DataRowState.Added:
                    urunGoster.Urun_Ekle(urun);
                    break;

                case DataRowState.Modified:
                    urun.Urun_kodu = item[0].ToString();
                    urunGoster.Urun_Guncelle(urun);
                    break;

                default:
                    break;
                }
            }

            #endregion
            #region EntityTabloDegisiklik
            //using (SirketContext sctx = new SirketContext())
            //{
            //    List<Urun_Tablosu> lst = sctx.Urun_Tablosu.ToList();
            //    foreach (Urun_Tablosu item in lst)
            //    {

            //        foreach (DataRow tbl in dt.Rows)
            //        {
            //            switch (tbl.RowState)
            //            {

            //                case DataRowState.Added:
            //                    Urun_Ekleyici();
            //                    break;
            //                case DataRowState.Deleted:
            //                    break;
            //                case DataRowState.Modified:
            //                    break;
            //                default:
            //                    break;
            //            }
            //        }
            //    }
            //}

            #endregion
        }
        private void btnKaydet_Click(object sender, EventArgs e)
        {
            UrunBL urun = new UrunBL();

            foreach (DataRow item in dt.Rows)
            {
                Urun u = new Urun();
                if (item.RowState != DataRowState.Deleted)
                {
                    u.Urun_ad     = item[1].ToString();
                    u.Urun_kodu   = item[2].ToString();
                    u.Stok_mik    = (Convert.ToInt32(item[3]));
                    u.Fiyat       = (Convert.ToInt32(item[4]));
                    u.urun_renk   = item[5].ToString();
                    u.kategori_id = Convert.ToInt32(item[6]);
                }
                switch (item.RowState)
                {
                case DataRowState.Added:
                    urun.Urun_Ekle(u);
                    break;

                case DataRowState.Deleted:
                    urun.Urun_Sil(u);
                    break;

                case DataRowState.Modified:
                    u.Urun_kodu = item["Urun_Kod"].ToString();
                    urun.Urun_Guncelle(u);
                    break;

                default:
                    break;
                }
            }
        }