First i want that ASP.NET_SessionId  whose securtiy  is set to be true.
 
 Then i achieved by following statement which is given below: 
 
After setting in web  Config secure flag became true .
 
But all session value is null when redirect  to another page.
 
I want my session would not null as well as secure flag is  true.
 
 
Thanks in Adavance.