DataTable dt = this.dataGridView.DataSource as DataTable; using (OleDbConnection cCon = new OleDbConnection(con)) { OleDbDataAdapter ada = new OleDbDataAdapter(string.Format(@"select * from [{0}]", mySet), cCon); OleDbCommandBuilder cBu = new OleDbCommandBuilder(ada); try { ada.Update(dt); dt.AcceptChanges(); } catch{} }