Checking session if empty or not

Question

I want to check that session is null or empty i.e. some thing like this:

if(Session[\"emp_num\"] != null)
{

   if (!string.IsNullOrEmpty(Session[\"emp_num\"         


        

Answer 1

If It is simple Session you can apply NULL Check directly Session["emp_num"] != null

But if it's a session of a list Item then You need to apply any one of the following option

Option 1:

if (((List)(Session["emp_num"])) != null && (List)Session["emp_num"])).Count > 0)
 {
 //Your Logic here
 }

Option 2:

List val= Session["emp_num"] as List;  //Get the value from Session.

if (val.FirstOrDefault() != null)
 {
 //Your Logic here
 }