C# Cannot check Session exists?

Question

I get an error when I do the following:

if(Session[\"value\"] != null)
{
   // code
}

The error i get is this:

Object reference not

Answer 1

The [] is an indexer, it acts like a method on the class.

In this case, Session is null and you cannot perform the indexing on it.

Do this:

if(Session != null && Session["value"] != null)
{
   // code
}