namespace zam.WebPages
{

             
    public partial class SuperUserLogin1 : System.Web.UI.Page
    {
     
        protected void AddUser_Click(object sender, EventArgs e)
        {

            try
            {
                // setup nhibernate configuration
                NHibernate.Cfg.Configuration config = new NHibernate.Cfg.Configuration();
                // add our assembly
                //config.AddXmlFile(@"C:\Documents and Settings\Keycorp\My Documents\Visual Studio 2008\Projects\zam\zam\Mappings\superuser.hbm.xml");
                config.AddAssembly("zam");
                // setup nhibernate session
                NHibernate.ISessionFactory factory = config.BuildSessionFactory();
                NHibernate.ISession session = factory.OpenSession();
                // start nhibernate transaction
                NHibernate.ITransaction transaction = session.BeginTransaction();

                // create contact
                testlogin1 superUserLogin = new testlogin1();
                superUserLogin.userID = UserID.Text;
                superUserLogin.userName = UserName.Text;
                superUserLogin.password = passwrod.Text;



                // Tell NHibernate that this object should be saved
                session.Save(superUserLogin);

                // commit all of the changes to the DB and close the ISession
                transaction.Commit();
                session.Close();
            }
            catch (Exception m )
            {
                System.Console.WriteLine(m);
            }

        }
    }
}

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="zam" namespace="zam.WebPages">

  <class name="zam.testlogin1, zam " table="superuser">
    <id name="userID">
      <generator class="identity"/>
    </id>
    <property name="userNAME " />
    <property name="password " />
  </class>
</hibernate-mapping>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace zam
{
    public class testlogin1
    {

        public string userID
        {
            get;
            set;
        }
        public string userName
        {
            get;
            set;
        }
        public string password
        {
            get;
            set;
        }
    }
}

  <hibernate-configuration  xmlns="urn:nhibernate-configuration-2.2" >
    <section name="hibernate-configuration" requirePermission="false" type="NHibernate.Cfg.ConfigurationSectionHandler, NHibernate" /> -- this is in the config sections of web.config file
    <session-factory name="NHibernate.Test">
      <property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property>
      <property name="connection.driver_class">NHibernate.Driver.MySqlDataDriver</property>
      <property name="connection.connection_string">
        Database=zam;Data Source=localhost;User Id=root;Password=
      </property>
      <property name="dialect">NHibernate.Dialect.MySQLDialect</property>
    </session-factory>
  </hibernate-configuration>