How to save value in session in .net

Question

I am trying to save value in session in webservice but it gives me error: object reference not set to an instance of an object.

Session["ProcessStartTime"] = strDate;

You need to add support for sessions to the web service. What web service technology are you using? — Lloyd, Feb 20 '13 at 10:51
But what web service framework, classic SOAP services, WCF etc...? — Lloyd, Feb 20 '13 at 11:05
These links can be helpful: http://stackoverflow.com/questions/4804954/c-sharp-sessions-object-reference-not-set-to-an-instance-of-an-object http://stackoverflow.com/questions/1382791/asp-net-what-to-do-if-current-session-is-null — algreat, Feb 20 '13 at 11:09

score 0 · Answer 1 · answered Feb 20 '13 at 11:06

0

Add (EnableSession = True) to the WebMethod

[WebMethod (EnableSession = true)]

or Read this nice article on How to use session state in web service

answered Feb 20 '13 at 11:06

ZedBee

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score 0 · Answer 2 · answered Feb 20 '13 at 11:54

Make sure your strDate not null
check you enabled session using Session["ProcessStartTime"] = strDate; before declaration method

here is a sample

public class mytest: System.Web.Services.WebService
    {
        [WebMethod (EnableSession = true)]
        public string HelloWorld()
        {
           //your logic here
            if(strDate!=null)
                  Session["ProcessStartTime"] = strDate;
            else
                 // handle if ur strDate is null
         }
    }

How to save value in session in .net

2 Answers2