Calling Stored procedure using Nhibernate -- Getting exception No persister for:

here is code, how I am calling Stored procedure

ISession session = NHibernateHelper.GetCurrentSession();
        IQuery q = session.GetNamedQuery("ps_getProgressBarData1");
        var t = q.List();

XML mapping

<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"   namespace="ReleaseDAL"  assembly="ReleaseDAL">

 <sql-query name="ps_getProgressBarData1">
    <return alias="ProgressBar" class="ProgressBar">
      <return-property name="Tot" column="Tot"/>
      <return-property name="subtot" column="subtot"/>
    </return>
    exec ps_getProgressBarData1
  </sql-query>
</hibernate-mapping>

Class mapping

public virtual Int32 Tot {get { return _Tot;开发者_如何学Python } set { _Tot = value; } }
    public virtual Int32 subtot { get { return _subtot; } set { _subtot = value; }}

I am getting exception: No persister for: ReleaseDAL.ProgressBar, ReleaseDAL, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null

Please tell me what is the issue here?

Thanks

---

You could get that error you don't have the mapping file marked as embedded resource. Please check that as first thing.

---

Well you don't have a mapping for ProgressBar (it's not an entity I suppose), so probably you just want a DTO as a result from the query.

So you just have to map the result as scalars, and in the query define a transformer.

 <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" namespace="ReleaseDAL"  assembly="ReleaseDAL">

 <sql-query name="ps_getProgressBarData1">
      <return-scalar column="Tot" Type="xxx"/>
      <return-scalar column="subtot" Type="xxx"/>

    exec ps_getProgressBarData1
  </sql-query>
</hibernate-mapping>

and in the query methode:

query.SetResultTransformer(Transformers.AliasToBean(typeof(ProgressBar )));
query.List()