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

Question

0.00/5 (No votes)

See more:

Hi experts,

I stuck on this error message. can any one give me a hint?

in my code behind(ASP.net C# web form programming), I try to evaluate a session variable, then execute some codes... debug pops this error message(see below) every time when it runs into the session evaluation line. What is proper setting in webconfig to fix this? can u give a complete sample. I tried as message suggested, it still pops.

if (Session["name"] == NULL)
//Do sth

error message
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 \\ section in the application configuration

Thank you in advance

dd

Posted 4-May-13 8:25am

dd88gratefull

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Answer 1 · 2013-05-04T09:16:00

Follow Session state can only be used when enableSessionState is set to true either in a configuration[^], which says...

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

XML
<system.web>
      <pages enablesessionstate="true"> 
 </pages></system.web>
Or did you add this to the page?

XML
<%@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.

XML
<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.