Store List to session
Yes, you can store any object (I assume you are using ASP.NET with default settings, which is in-process session state):
Session["test"] = myList;You should cast it back to the original type for use:
var list = (List<int>)Session["test"];// list.Add(something);As Richard points out, you should take extra care if you are using other session state modes (e.g. SQL Server) that require objects to be serializable.
I found in a class file outside the scope of the Page, the above way (which I always have used) didn't work.
I found a workaround in this "context" as follows:
HttpContext.Current.Session.Add("currentUser", appUser);and
(AppUser) HttpContext.Current.Session["currentUser"]Otherwise the compiler was expecting a string when I pointed the object at the session object.