Unable to serialize the session state

Prasant,
The problem lies with a configuration difference in IIS between your local machine and that of your web server.

Since you are handling session using stateserver as SQL Server in order to transfer the data to the database server IIS serializes your session information to send to another server. Basically  this takes all the details for a given object and converts them to XML so that the object can be saved and loaded into memory as needed.

The problem in your case is that 'System.Web.HttpPostedFileWrapper' class do not support serialization. Usually this problem occurs with classes written by developers and we can just add attribute [Serializable] to solve the issue. Since, this is something provided by .NET framework you do not have any work around. You may have to write your own class for the purpose or do not use this one.

My suggestion is to look for work around by not using this one.

Hi Sukesh,

I have already tried that.still it didn't work

Thanks,
Prasant

attach  [Serializable] attrbute to your class which you are trying to strore in session.


example

[Serializable] 
public class A
{
..........
.......
}

A a =new A();
.........

Sessiion["asdasdsa"]=a;

Check this is correct answer if it helped.