public OleDbDataReader ExecuteQueryReturnReader(string sql, string connStr)

        {

            OleDbConnection conn = new OleDbConnection();

            OleDbDataReader reader = null;

            try

            {

                conn = new OleDbConnection(connStr);

                conn.Open();



                OleDbCommand command = conn.CreateCommand();

                command.CommandText = sql;

                reader = command.ExecuteReader();

            }

            catch

            {

            }

            finally

            {

                if (conn != null)

                    conn.Close();

            }

            return reader;

        }      

 string DataBase = "HCConfig.mdb";

            string strConnection = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="

                                    + Application.StartupPath + "//" + DataBase;

            ExecSql con = new ExecSql();