session state in asp.net

Question

I'm going to save a variable in session by this:

context.Session["name"] = context.Request.Params["name"];
context.Response.Write(context.Session["name"]);

and the config file is this:

<configuration>
   <system.web>
       <compilation debug="true" targetFramework="4.0" />
       <sessionState cookieless="false" mode="StateServer" timeout="10000"  
           stateConnectionString="tcpip=127.0.0.1:42424">
       </sessionState>
    </system.web>
</configuration>

but I got this error: Object reference not set to an instance of an object.

What is wrong with my code?

Can you show us the context, pun intended, of where you are using the context? Also, have you put a breakpoint on the lines and examined the local variables? — Karl Anderson, Jun 14 '13 at 14:59
@SuperHornet - is this being used in an .aspx page, HttpHandler, etc.? — Karl Anderson, Jun 14 '13 at 15:00
This is a duplicate: http://stackoverflow.com/questions/14181408/httpcontext-current-session-is-null-in-ashx-file, http://stackoverflow.com/questions/2156524/asp-net-session-is-null-in-ashx-file — Justin Helgerson, Jun 14 '13 at 15:02

score 1 · Accepted Answer · answered Jun 14 '13 at 15:01

1

Your HttpHandler needs to implement the IRequireSessionState interface, otherwise Session is not available to the handler.

answered Jun 14 '13 at 15:01

Karl Anderson

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thanks, your answer is helpful – Super Hornet Jun 14 '13 at 15:08

session state in asp.net

1 Answers1