My code is as below:
Configuration cfg = new Configuration();
cfg.AddAssembly("NHibernate.Examples");

ISessionFactory factory = cfg.BuildSessionFactory();
ISession session = factory.OpenSession();
ITransaction transaction = session.BeginTransaction();

User newUser = new User();
newUser.Id = "Joseph_Cool";
newUser.UserName = "Joseph Cool";
newUser.Password = "abc123";
newUser.EmailAddress = "joe@cool.com";
newUser.LastLogon = DateTime.Now;

// Tell NHibernate that this object should be saved
session.Save(newUser);
// commit all of the changes to the DB and close the ISession
transaction.Commit();
session.Close();

I get error at session.save(newUser)..

mapping is as below:

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2">
<class name="NHibernate.Examples.QuickStart.User, NHibernate.Examples"

table="users">
<!--table="[NHibernate].[dbo].[users]">-->
<id name="Id" column="LogonId" type="String" length="20">
<generator class="assigned"/>
</id>

<property name="UserName" column="Name" type="String" length="40"/>
<property name="Password" type="String" length="20"/>
<property name="EmailAddress" type="String" length="40"/>
<property name="LastLogon" type="DateTime"/>
</class>
</hibernate-mapping>


i am getting error in the folloing method at bold line:
public object GetIdentifier(object entity)
{
object id;
if (entityMetamodel.IdentifierProperty.IsEmbedded)
{
id = entity;
}
else
{
if (idGetter == null)
{
if (identifierMapperType == null)
{
throw new HibernateException("The class has no identifier property: " + EntityName);
}
else
{
ComponentType copier = (ComponentType)entityMetamodel.IdentifierProperty.Type;
id = copier.Instantiate(EntityMode);
copier.SetPropertyValues(id, identifierMapperType.GetPropertyValues(entity, EntityMode), EntityMode);
}
}
else
{
id = idGetter.Get(entity);
} }

return id;
}

Please help me out.
I am totally newbie in NHibernate.

It would surely help to know which error you get.

"Exception occurred getter of NHibernate.Examples.QuickStart.User.Id"


Message is:
"Object does not match target type."


and the whole stack trace is:

at System.Reflection.RuntimeMethodInfo.CheckConsistency(Object target)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at System.Reflection.RuntimePropertyInfo.GetValue(Object obj, BindingFlags invokeAttr, Binder binder, Object[] index, CultureInfo culture)
at System.Reflection.RuntimePropertyInfo.GetValue(Object obj, Object[] index)
at NHibernate.Properties.BasicPropertyAccessor.BasicGetter.Get(Object target) in c:\dev\OSS\NHibernate\nhibernate\src\NHibernate\Properties\BasicPropertyAccessor.cs:line 201