CODEWITHSUNDEEP
.netvisual-studio-2010sessionasp.net-mvc-2
Sampath
Sampath

Reputation: 65870

Session state can only be used when enableSessionState is set to true either in a configuration

I am working on Asp.net MVC 2 app with c# by using vs 2010.I am having below mentioned error when I run my app locally under debug mode.

Error message image is as below :

enter image description here

Error message text is as below :

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.

What I did for sort out this issue are as below :

Try 1 : web.config file has been changed like below:

<system.webServer>
       <modules runAllManagedModulesForAllRequests="true">
        <remove name="Session" />
        <add name="Session" type="System.Web.SessionState.SessionStateModule, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
    </modules>
</system.webServer

Try 2 is as below :

enter image description here

But Unfortunately still I am having same issue which I have mentioned Above.

UPDATE

enter image description here

Do you have any solution for this ?

Upvotes: 41

Views: 175866

Answers (14)

Sedat Kumcu
Sedat Kumcu

Reputation: 2430

If you are using a "Generic Handler(ashx)"; you should add an "inheritance" like below. IRequiresSessionState

public class GhStreamViewsGuncelle : IHttpHandler, IRequiresSessionState
{
     public void ProcessRequest(HttpContext context)
     {
        .....
        .....
     }
}

Upvotes: 1

Ash
Ash

Reputation: 1298

might be sometimes needing a

[WebMethod(EnableSession = true)]

from a web service

Upvotes: 0

Nikolai
Nikolai

Reputation: 1

Session State may be broken if you have the following in Web.Config:

<httpModules>
  <clear/>
</httpModules>

If this is the case, you may want to comment out such section, and you won't need any other changes to fix this issue.

Upvotes: 0

Praveen
Praveen

Reputation: 195

I have got this error only when debugging the ASP .Net Application.

I also had Session["mysession"] kind of variables added into my Watch of Visual Studio.

the issue was solved Once, I have removed the Session Variables from watch.

Upvotes: 1

MAFAIZ
MAFAIZ

Reputation: 691

For SharePoint Can find the web config file in C:\inetpub\wwwroot\wss\VirtualDirectories\Sitecollection port number - and Make changes

 <system.web>
  <pages enableSessionState="true" /> 
 </system.web>

and using SharePoint Management Shell Run below Command

   Enable-SPSessionStateService -DefaultProvision

Upvotes: 3

jessehouwing
jessehouwing

Reputation: 114641

Did you enable the session state in the section as well?

 <system.web>
      <pages enableSessionState="true" /> 
 </system.web>

Or did you add this to the page?

 <%@Page enableSessionState="true">

And did you verify that the ASP.NET Session State Manager Service service is running? In your screenshot it isn't. It's set to start-up mode Manual which requires you to start it every time you want to make use of it. To start it, highlight the service and click the green play button on the toolbar. To start it automatically, edit the properties and adjust the Start-up type.

Or set the SessionState's mode property to InProc, so that the state service is not required.

 <system.web>
      <sessionState mode="InProc" />
 </system.web>

Check MSDN for all the options available to you with regards to storing data in the ASP.NET session state.

Note: It's better to have your Controller fetch the value from the session and have it add the value to the Model for your page/control (or to the ViewBag), that way the View doesn't depend on the HttpSession and you can choose a different source for this item later with minimal code changes. Or even better, not use the session state at all. It can kill you performance when you're using a lot of async javascript calls.

Upvotes: 45

Sebris87
Sebris87

Reputation: 452

This error was raised for me because of an unhandled exception thrown in the Public Sub New() (Visual Basic) constructor function of the Web Page in the code behind.

If you implement the constructor function wrap the code in a Try/Catch statement and see if it solves the problem.

Upvotes: 1

Samara
Samara

Reputation: 387

In my case problem went away simply by using HttpContext.Current.Session instead of Session

Upvotes: 6

Adeem
Adeem

Reputation: 1346

Following answer from below given path worked fine.

I found a solution that worked perfectly! Add the following to web.config:

<system.webServer>
<modules>
<!-- UrlRewriter code here -->
<remove name="Session" />
<add name="Session" type="System.Web.SessionState.SessionStateModule" preCondition="" />
</modules>
</system.webServer>

Hope this helps someone else!

Upvotes: 1

Michelle Sollicito
Michelle Sollicito

Reputation: 71

I want to let everyone know that sometimes this error just is a result of some weird memory error. Restart your pc and go back into visual studio and it will be gone!! Bizarre! Try that before you start playing around with your web config file etc like I did!!!! ;-)

Upvotes: 7

HydTechie
HydTechie

Reputation: 608

  1. Could be your skype intercepting your requests at 80 port, in Skype options uncheck
  2. Or Your IE has connection checked for Proxy when there is no proxy
  3. Or your fiddler could intercept and act as proxy, uncheck it!

Solves the above problem, It solved mine!

HydTechie

Upvotes: 0

Dan Diplo
Dan Diplo

Reputation: 25339

I realise there is an accepted answer, but this may help people. I found I had a similar problem with a ASP.NET site using NET 3.5 framework when running it in Visual Studio 2012 using IIS Express 8. I'd tried all of the above solutions and none worked - in the end running the solution in the in-built VS 2012 webserver worked. Not sure why, but I suspect it was a link between 3.5 framework and IIS 8.

Upvotes: 2

Nacht
Nacht

Reputation: 3494

also if you are running SharePoint and encounter this error, don't forget to run

Enable-SPSessionStateService -DefaultProvision

or you will continue to receive the above error message.

Upvotes: 14

Sampath
Sampath

Reputation: 65870

Actually jessehouwing gave the solution for normal scenario.

But in my case I have enabled 2 types of session in my web.config file

It's like below.

First one :

<modules runAllManagedModulesForAllRequests="true">
        <remove name="Session" />
        <add name="Session" type="System.Web.SessionState.SessionStateModule, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
</modules>

Second one :

<sessionState mode="Custom" customProvider="DefaultSessionProvider">
            <providers>
                <add name="DefaultSessionProvider" type="System.Web.Providers.DefaultSessionStateProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="PawLoyalty" applicationName="PawLoyalty"/>
            </providers>
 </sessionState>

So in my case I have to comment Second one.B'cos that thing for the production.When I commented out second one my problem vanished.

Upvotes: 8

Related Questions