Access Session In Global.asax Methods in MVC3 Environment

Question

Possible Duplicate:
Why HttpContext.Current.Session is null in Global.asax?

I am developing a MVC3 project (Razor).
I added a variable to my session in some Controller/Action (different per user).
I want to access this variable in Application_AuthenticateRequest method (global.asax).

This exception happened:

Session state is not available in this context.

Sample Project

See http://stackoverflow.com/a/4185982/717732 and the question, too. — quetzalcoatl, Sep 01 '12 at 13:07
In that post : @Torbjörn Hansson: Sometimes it's null, do you have any idea why that? – Homam Jul 17 '11 at 19:35 — mehr, Sep 01 '12 at 13:22

score 0 · Answer 1 · edited May 23 '17 at 10:28

For startes, see https://stackoverflow.com/a/4185982/717732

The whole point is that Session is not available and simply will never be available at this point of time: and by 'time' I mean 'when this event is fired'.

Read the lifecycle for example at devproconnections.com/article/aspnet2/

The Session object is prepared much later: during the AcquireRequestState event. This is the first 'time' when you can access the Session statebag and investigate it.

score 0 · Answer 2 · answered Sep 01 '12 at 13:39

Thanks quetzalcoatl, This is true.

      try
        {                
            if (Session != null)
            {
                if (Session["mys"] != null)
                {
                    //Error
                    string s = HttpContext.Current.Session["mys"].ToString();
                }
                else
                {
                    Response.Redirect("~/Home/Index");
                    Response.End();
                }
            }
        }
        catch {
            Response.Redirect("~/Home/Index");
            Response.End();
        }

Have you just 'unaccepted' my answer? it's been over a year by now. What's wrong? — quetzalcoatl, Feb 06 '14 at 11:25

Access Session In Global.asax Methods in MVC3 Environment

2 Answers2