.Net - Can't create Session variables

Question

1.00/5 (1 vote)

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In one new project, I can't create Session variables. for

C#

Session["fileName"] = null;

I got HttpException:

C#

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.

Then I added

XML

<system.web>
<sessionState mode="InProc" timeout="60" cookieless="false" />
<pages enableSessionState="true" />
<httpModules>
  <remove name="Session" />
  <add name="Session" type="System.Web.SessionState.SessionStateModule" />
</httpModules>
</system.web>

But still got the same error. I used Session Variables in my other projects well. I wonder why I got error in this asp project. Thanks if you can share your experience.

Posted 12-Jan-16 4:18am

s yu

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Comments

Richard Deeming 12-Jan-16 10:26am

What does your @Page directive[^] look like?

s yu 12-Jan-16 10:31am

No @Page Directive is defined. In my other projects, in which Session variables work fine, there are also no @Page Directive.

Richard Deeming 12-Jan-16 10:32am

So where are you trying to create the session variable? Is this an ASP.NET MVC application?

s yu 12-Jan-16 10:34am

Asp.net.

Richard Deeming 12-Jan-16 10:37am

OK, but WHERE are you trying to create the session variable?

If it's not in a page, and you're not using MVC, then are using a generic handler? (.ashx)

If you are, then did you remember to implement the IRequireSessionState interface?

s yu 12-Jan-16 10:47am

Used an aspx.cs file. Added explicitly, System.Web.SessionState.IRequiresSessionState , but not working. Something stranger.

Richard Deeming 12-Jan-16 10:49am

So how does your .aspx file know which .aspx.cs file it's associated with, if you haven't used a <%@ Page ... %> directive?

ZurdoDev 12-Jan-16 10:27am

You don't need the httpModules section for session to work. Just that sessionState one you have is fine.

s yu 12-Jan-16 10:35am

Commented out the httpModules but the error still exists.

s yu 12-Jan-16 10:55am

I guess the problem is caused by the page itself. This page exists some crashing issues. I work on another age, and there is no such a problem. This thread can be closed. Thanks.

ZurdoDev 12-Jan-16 10:58am

As Richard asked, what does your page directive look like? That is the part at the top of the aspx page.

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OriginalGriff · Answer 1 · 2016-01-12T05:08:00

Solution 1

Answered only to remove from unanswered queue -solved by OP:

guess the problem is caused by the page itself. This page exists some crashing issues. I work on another age, and there is no such a problem. This thread can be closed. Thanks.

Posted 12-Jan-16 5:08am

OriginalGriff