Problem to handle with Gridview

Hi,

I am running VS 2013 against Access 2013 DB. But due to that I'm calling this event

                        ...
                        BindData();
                        ...

        private void BindData()
        {
            int iteid;
            bool b = int.TryParse(lb_iteid.Text, out iteid);
            DataTable table = new DataTable();
            using (OleDbConnection conn = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;Jet OLEDB:Database Password=?????;Data Source=C:\inetpub\VS2012\DB1.accdb"))
            {
                string sql = "Select * from ite_tab2 where ite_id=@ite_id";
                using (OleDbCommand cmd = new OleDbCommand(sql, conn))
                {
                    //using (SqlDataAdapter ad = new SqlDataAdapter(cmd))
                    using (OleDbDataAdapter ad = new OleDbDataAdapter(cmd))
                    {
                        cmd.Parameters.Add("@ite_id", OleDbType.Integer).Value = iteid;
                        ad.Fill(table);
                    }
                }
            }
            GridView1.DataSource = table;
            GridView1.DataBind();
        }

when saving the record, I've got this exception. why?

IErrorInfo.GetDescription failed with E_FAIL(0x80004005).System.Data

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Many Thanks & Best Regards, Hua Min