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Retrieve data into a class with support of stored procedure with nhibernate. You use nhibernate to retrieve the data by using stored procedure.

I have followed some instructions (the link to the website is below) but it doesn't work because I retrieve a error message that is:

"An unhandled exception of type 'NHibernate.MappingException' occurred in NHibernate.dll"
"Additional information: Named query not known: sp_retrieveAllProductCategory"

- I'm using VS 2013 and SQL server 2013.


<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="data_layer" namespace="data_layer">
  <sql-query name="sp_retrieveAllProductCategory">

    <return class="Produkt">
      <return-property column="Produkt_kategori" name="Produkt_kategori" />
      <return-property column="Produkt_kategori_ordningsnummer" name="Produkt_kategori_ordningsnummer" />
    exec sp_retrieveAllProductCategory



<?xml version="1.0" encoding="utf-8" ?>
<hibernate-configuration xmlns="urn:nhibernate-configuration-2.2">
    <property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property>
    <property name="dialect">NHibernate.Dialect.MsSql2012Dialect</property>
    <property name="connection.driver_class">NHibernate.Driver.SqlClientDriver</property>
    <property name="connection.connection_string">Data Source=SHAREPOINT01;Initial Catalog=Active_system;Integrated Security=True</property>
    <property name="show_sql">false</property>
    <mapping assembly="data_layer"/>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using NHibernate;
using NHibernate.Cfg;

namespace data_layer

    public class NhibernateDataProvider

        public NhibernateDataProvider()
            _sessionFactory = new Configuration().Configure().BuildSessionFactory();
            _session = _sessionFactory.OpenSession();

        private ISessionFactory _sessionFactory;
        private ISession _session;

        public IList<Produkt> GetAllEmployee()
            return _session.CreateCriteria<Produkt>().List<Produkt>();

        public void GetNamedQuery()
            IQuery query = _session.GetNamedQuery("sp_retrieveAllProductCategory");

            //             IList<Product> products = query.List<Product>();

            IList<Produkt> products = query.List<Produkt>();





using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace data_layer
    public class Produkt
        public virtual string Produkt_kategori { get; set;}
        public virtual int Produkt_kategori_ordningsnummer { get; set;}

1 solution


Try this link :[^]

Its very well described

Share this answer
deelll 7-May-14 8:55am    
It goes better when I tried the new solution based on the link that you have provided. I retrieved another error message that is "{"query did not return a unique result: 6"}". Do you know what I need to do?
Suvabrata Roy 7-May-14 9:44am    
I think you are using SingleOrDefault and query returned multiple result so this error occur
You can change your code to FirstOrDefault I think it should work...

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