Session expire error

Am trying to store a generic list in Session to act as a simple shopping cart. Am getting a weird casting error when I try and retrieve it from Session.

A critical error has occurred.
[A]System.Collections.Generic.List`1[MyCartItem] cannot be cast to [B]System.Collections.Generic.List`1[MyCartItem].
Type A originates from 'mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'
    in the context 'LoadNeither' at location 'C:\WINDOWS\assembly\GAC_32\mscorlib\2.0.0.0__b77a5c561934e089\mscorlib.dll'.
Type B originates from 'mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'
    in the context 'LoadNeither' at location 'C:\WINDOWS\assembly\GAC_32\mscorlib\2.0.0.0__b77a5c561934e089\mscorlib.dll'.

I have a class variable defined:

List<MyCartItem> _cart;

In the Load event I have:

_cart = (Session["MyCart"] != null) ? (List<MyCartItem>)Session["MyCart"] : new List<MyCartItem>();

I'm developing Visual Studio 2010 solution for site pages. I’ve created Site Pages in SharePoint 2010 and I’m trying to access Session variables in code behind in ASP.NET but it throws the following error.

Session state can only be used when enableSessionState is set to true, either in a configuration file or in the Page directive. Please also make sure that System.Web.SessionStateModule or a custom session state module is included in the <configuration>\<system.web>\<httpModules> section in the application configuration.

I set the page directive as enableSessionState=&quo

Getting this error in event log. Anyone seen this before?

Hello,
Could someone help me with the following issue, please?

System setup:
- Windows 2008 R2 server hosting both MVC2 web application and WCF service for it;
- users connect to the web application which gets all data from the WCF services;
- WCF services are resused by several other applications (WinForms based) which work fine and have never experienced any security related problems;
- MVC2 uses impersonation (<identity impersonate="true"/>) to connect to WCF services, so we have single security boundary for both web and winforms clients (which are out of scope of the problem);
- both MVC2 web application and WCF services share the same ASP.NET v4.0 DefaultAppPool application pool, running under NetworkService identity;
- all users, user PCs and servers belong to the same AD domain, which is a part of global corporate tree;
- all unhandled exceptions are automatically caught by the web application and forwarded to application developers' e-mail box;
- WCF binding setup in web application:

<wsHttpBinding>
    <binding name="WSHttpBinding_BifrostServices" closeTimeout="00:10:00"
     openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00"

Hi,

Really hope that someone can help me out with this problem as I've been banging my head against the wall for the last 5 hours or so.  I've written a URL Rewriting HttpModule for a client and it all works fine in the development environment, but when I upload it to IIS 7 on my server it starts to complain (no surprise there then).  The error that is getting thrown is :

Session state can only be used when enableSessionState is set to true, either in a configuration file or in the Page directive. Please also make sure that System.Web.SessionStateModule or a custom session state module is included in the <configuration>\<system.web>\<httpModules> section in the application configuration.

It only happens in the IIS 7 and when I use the URL Rewriting (if I go the page directly everything is fine).  I can actually use the Session fine in the actual page but the error is being thrown through a custom control that is being used for the menuheader and it needs to know about the session.  I've tried many things including putting all the enableSessionState directives into the web.config and the page directive and even someone saying that this was a bug in x64 machines and that I had to write a verificationCompatibilty entry into the registry.

The thing I don't understand is why it's not

Hi,

I need your help badly. I want to expire session when wndow is directly closed. I have master page.

Hi,

I have an issue with my asp .net application. I am using custom errors on my pages. So I configured in web.config like,

<customErrors mode="On" defaultRedirect="~/ErrorPage.aspx">

      <error statusCode="403" redirect="~/ErrorPage.aspx"/>

      <error statusCode="404" redirect="ServerError.aspx?errorCode=404"/>

If an internal server error comes, ie, 500 then I have to send an email to the administrator with all the error details with error number.

For this I have created a code in the application_error section of global.asax page. If a 500 error comes it will be send a mail to the admin with details.

But if 403 error came, ie, session expired; it will loop to the application_error and sending mail repeatedly.

In the Error page, I am checking the session variable and if there is no session exists the page will redirect to login page.

How to handle this Problem? Can any one suggest a good solution for this?

Below is the app_error code

void Application_Error(object sender, EventArgs e)

{

Exception exception = Server.GetLastError();

Exception objErr = Server.GetLastErro

Hi all,

I set session timeout ="200".

But my session automatically time out within 5 minute.

plz suggest me what i do for fixed session timeout?

Thanks

Viky.

I read the solutioin for this error, at the following link :

http://forums.asp.net/p/1046935/1576341.aspx

but I am still not clear what exactly causes the error. I have two doubts :

1. Can anyone please elaborate a bit on this issue, with any example ????

2. Is there any drawback of this approach ???

Thanks in advance for any reply......

Hi there,

If a user's security ticket and session state are configured to expire after twenty minutes, is it possible that one could go before the other? So for example, a user could have access to a protected web page but their sessions has been lost?

Cheers, WT.

I am about exhausted trying to figure out this error:

HTTP Error 500.0 - Internal Server Error