how to refer to an empty session variable

[aonefun]

I would like to show some code based on if a session variable contains a value. How do I put this into code:

Is this the right way?:

If session("postalcode")<>""
Then

or do I use something like NOT ISNULL or NOT ISEMPTY?

 

[bslintx]

that is commonly used..but i'd use the len function.....make sure to trim the variable to get accurate results

  Session("my_session_name") = "Bob"

  sMySessionValue = Trim(Session("my_session_name"))
 
  If Len(sMySessionValue) > 0 Then
   Response.Write " 1. My session value is: " & sMySessionValue
  End If

  If sMySessionValue <> "" Then
   Response.Write " 2. My session value is: " & sMySessionValue
  End If