NHibernate 3.3.1 with Medium Trust error

Question

I'm using NHibernate 3.3.1 in medium trust. It throw a Security Exception. In the NHibernate 3.3.1 say that it is compatible with medium trust.

Has it any prerequisite?

Answer 1

I've had success using the NHibernate.DependencyInjection NuGet package to use NHibernate in a medium trust environment.

Answer 2

NHibernate supports medium trust, please read this article.

It describes how to achieve what you want.

Answer 3

I had the same problem and tried all suggestion to fix it (including DependencyInjection), but only one helped me:

I've added following code to my Global.asax file

protected void Application_Start()
{
    NHibernate.Cfg.Environment.UseReflectionOptimizer = false;
    ...
}

And disabled batch in configuration file (last property)

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-configuration xmlns="urn:nhibernate-configuration-2.2" >
  <session-factory name="NHibernate.Test">
    <property name="connection.driver_class">NHibernate.Driver.SqlClientDriver</property>
    <property name="connection.connection_string">Server=........</property>
    <property name="dialect">NHibernate.Dialect.MsSql2008Dialect</property>
    <property name="query.substitutions">true=1;false=0</property>
    <property name="show_sql">false</property>
    <property name="adonet.batch_size">0</property>
  </session-factory>
</hibernate-configuration>

Note, this should cause performance issues

Answer 4

You need to get a more detailed error message so we can diagnose further. In your web.config add this in the system.webserver

<httpErrors errorMode="Detailed"/>

Hopefully this will give you a full stack trace and from there should allow you to debug further.

You may also need to add this

<customErrors mode="Off" /> in system.web (I can't remember)