Question

The reason I ask is that I am trying to run MVC side-by-side with WebForms.

For WebForms we use an HttpModule to open and close an NHibernate Session once per request – opening the session during HttpApplication.BeginRequest and HttpApplication.EndRequest. For MVC, the recommended method is to use an ActionFilterAttribute but to keep things simple I have decided to stick with the HttpModule.

However, I am using an ActionFilter to open and close Transactions.

I am getting some strange intermittent problems though and I’m curious whether the issue could be that the HttpApplication.EndRequest method is firing before the ActionFilter’s OnResultExecuted method.

Answer 1

Here’s the order of execution:

1. HttpApplication.BeginRequest
2. ActionFilterAttribute.OnResultExecuted
3. HttpApplication.EndRequest

The HttpApplication.EndRequest can never fire before ActionFilterAttribute.OnResultExecuted.