i m getting the following error... it runs fine on local machine but when i upload it on the web server it gives the following error.

[ObjectDisposedException: Cannot access a disposed object.
Object name: 'AdoTransaction'.]
NHibernate.Transaction.AdoTransaction.CheckNotDisposed() in c:\net\nhibernate\nhibernate\src\NHibernate\Transaction\AdoTransaction.cs:304
NHibernate.Transaction.AdoTransaction.Rollback() in c:\net\nhibernate\nhibernate\src\NHibernate\Transaction\AdoTransaction.cs:174
EDU.LUMS.OBS.DAL.DataLayer.rollback() in C:\Documents and Settings\All Users\Documents\Finale\EDU.LUMS.OBS.DAL\DataLayer.cs:131

[DALException: Unknown DataLayer Exception]
EDU.LUMS.OBS.DAL.DataLayer.rollback() in C:\Documents and Settings\All Users\Documents\Finale\EDU.LUMS.OBS.DAL\DataLayer.cs:146
EDU.LUMS.OBS.DAL.ItemDAL.getFeaturedItems() in C:\Documents and Settings\All Users\Documents\Finale\EDU.LUMS.OBS.DAL\ItemDAL.cs:460
EDU.LUMS.OBS.BL.ItemBL.getFeaturedItems() in C:\Documents and Settings\All Users\Documents\Finale\EDU.LUMS.OBS.BL\ItemBL.cs:372

[BLException: Featured Items could not been retrieved]
EDU.LUMS.OBS.BL.ItemBL.getFeaturedItems() in C:\Documents and Settings\All Users\Documents\Finale\EDU.LUMS.OBS.BL\ItemBL.cs:377
_Default.displayFeaturedItems() +54
_Default.Page_Load(Object sender, EventArgs e) +24
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +34
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +47
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1061


i m using the nHibernate 1.2 .0.1001 and MS SQL 2000.

Did you end up resolving this problem? I've just tried to move a system developed using web services with a NHibernate back end, which worked fine on the development server (where it is not distributed, but still uses web services) to the productions server. I am now getting the following exception thrown by the back end when trying to retrieve some data (some retrievals are successful though)

I get this exact exception as soon as the session is used after another exception is thrown.

To be more clear:

1. An insert fails at the db level
2. An exception is thrown
3. A select is executed
4. The above mentioned exception is thrown

Sorry to bump an old post but I am lost as to how to fix this problem.

Afaik, you can't use a session aftern an exception was thrown. You have to open a new session if you want to continue.

Thank you very much for your response. I'll give that a shot. If this is true I can see this being a problem with my current implementation.