Hi,

i get MappingException from NHibernate that says: "Unknown entity class"

I develop with Visual Web Developer 2005
My Web-Projectname is "SqlExpressTest"
I have two files in the "App_Code"-Folder:
1. "User.cs" --> is embed in a namespace named "NHibernateDemo"
2. "User.hbm.xml" --> in this file are the following tag:

<class name="NHibernateDemo.User, SqlExpressTest" table="users">

===============================================

My generally questions are:

1. A web-app hasn't a subfolder named "\bin" like in normal win-applications...where to compile-time is generated a dll with the name of the project. how can i know in a in web-app beforehand what is the name of the dll to can enrol it in the "User.hbm.xml"-File ???

Furthermore i think the "User.hbm.xml" is not embedded in the assambly, how can i reach it?

In the properties for your Web App you can see / set the Assembly name under the General topic, but it should default to the same as your project name.

You need to set the mapping file as an embedded resource in your project. In the Properties for the mapping file, open the Build Action list and pick embedded resource. You then have to rebuild (not build) your solution again to force re-generation of the dll.

After that, NHibernate should find the mapping file and your class.

CHeck out the NHibernate quick start http://www.hibernate.org/362.html

in VS.2005 the deployment method for web projects has changed. Instead of having one assembly being built from all your pages, now each page will have its own assembly built individually. In this new model you can't embed a file as a resource like in VS.NET 2003. You have 2 options: build your business logic layer as a separate class library project (though I don't know if this is possible with the VS Express Web Edition) or load your mapping files manually at runtime.

cheers,
radu