SharePoint 2010: "Session state has been disabled for ASP.NET. The Report Viewer control requires that session state be enabled in local mode"

SharePoint 2010: "Session state has been disabled for ASP.NET. The Report Viewer control requires that session state be enabled in local mode"

I had to install SharePoint Foundation 2010 for a new project. They needed a native Web Part, and the name of this was Report Viewer control

But a received a strange correlation-ID error and I could not open anymore my site. so I opened ULSVIEWER and got a stranger error: Session state has been disabled for ASP.NET. The Report Viewer control requires that session state be enabled in local mode

 

So I made some researches on internet and found always the same PowerShell Command:

Enable-SPSessionStateService ( "The only way to install ASP.Net Session State is through PowerShell using *-SPSessionStateService. [Enable | Disable | Get | Set]-SPSessionStateService" )

The problem is that when I followed the directions for enabling session state using powershell, I could not find the cmdlet. I spent a ridiculous amount of time trying to figure this out since I had the correct powershell snapin, but I could not find that cmdlet.

 

 

Web.config

First, you need to edit the web.config file of the SharePoint application. Open your web.config and add the httpModules

In the <system.web> section, find the <httpModules> element and edit it like the following:

<httpModules> <add name = “Session” type=”System.Web.SessionState.SessionStateModule” /></httpModules>

 

You also need to find the element tag <pages> (also under the <system.web> element) and look for the attribute called enableSessionState and set it to true if it is currently false. Save and close the web.config file.

 

 

IIS7

  • You should then open the IIS 7 manager, and select your web application.
  • Open the modules applet under the IIS section.
  • Click “Add Managed Module” in the right hand panel.
  • Enter a name for the module, I chose “SessionState”, you can pick what you like, but I suggest something related to session state and then in the lower box, select the entry for:

System.Web.SessionState.SessionStateModule, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a

 

Made an IISreset, and test again. you can now add your WebPart Report Viewer control to your site.

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