Hi,

I'm am developing a small app, where I have an ObjectManager; this manager receives read and write requests from business and UI layers. For each request, it open a session, loads/saveOrUpdate objects and the session is then closed. For a new created object, SaverOrUpdate affects the MySQL data base correctly. Bur for objects that are modified in the UI, the db is not affected by SaveOrUpdate; the record is not changed.
Here is the mapping file for the object I'm having problems with:

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2">
<class name="BlockNotas_3.ClasesBD.Nota, BlockNotas_3" table="nota">
<id name="oid" column="oid_nota" type="Int64" unsaved-value="0">
<generator class="identity"/>
</id>
<property name="titulo" column="not_titulo" type="String" length="45"/>
<property name="textoNota" column="not_nota" type="String" />
<property name="fecha" column="not_fecha" type="DateTime"/>
<many-to-one name="tipoNota" column="oid_tiponota" cascade="none"/>
</class>
</hibernate-mapping>

I'd appreciate any help.

Thank you,
Guillermo

It sounds like you are doing the right things. One common mistake (if one is not using a transaction) is forgetting to flush the session before closing it. If that is not it, you may want to post your code between the opening and closing of the session here.

Thank you Karl,

I missed to begin and commit a transaction; now it works.