I am completely at a lost here.  I feel like that I am missing something, but not too sure what that is right now.

I have a class that implements IList that I am trying to store in a session variable.  The session variable seems to be populated before I do a page post back.  After I do a page post back the session variable is no longer populated.

How do I keep an IList Collection populated in a session variable through a page post back?  Am I missing something?

Thanks,
Charles

If you want any variable to be maintained, user ViewState. Keep the IList collection on ViewState.

If you do not want your object to be populated before a post back you must ensure that the request is
infact a POST before you save your object to session

I guess you have some code blocks as following;

Sessin["myObject"] = myObject;

You need to check the request method before saving your object as following

if (Request.HttpMethod=="POST")
    Sessin["myObject"] = myObject;

 P.S. You should not store too much data in session variables.

DO NOT STORE COLLECTIONS IN THE VIEWSTATE.

 That's insanity.  Your page could take a month to load.