Use MarshalOptions when the dataset component uses a client-side cursor and data changes are to be sent back to the server. MarshalOptions specifies which records in the local recordset are sent to the middle tier or server. A value of moMarshalAll results in all records in the local recordset being packaged and sent back. A value of moMarshalModifiedOnly sends back only those records that have actually been changed in the local recordset The default value for MarshalOptions is moMarshalAll.