Session Variables not established - Object_required error 500 1

[sixteamparlay]

Line 76-78:

If Session("PalletID") = Nothing Then
Session("PalletID") = 0
End If


I tried "If Session("PalletID") IS Nothing" and still get the error "Object_required". I am checking to see if Session Variable PalletID was established, if it wasn't set it to 0

IIS ERROR LOG:
2009-03-18 13:32:08 172.16.1.250 GET /HiLo/PutAwayLocationSelectX.asp |76|800a01a8|Object_required 1 - 172.16.4.178 Mozilla/4.0+(compatible;+MSIE+7.0;+Windows+NT+6.0;+SLCC1;+.NET+CLR+2.0.50727;+.NET+CLR+3.0.04506;+.NET+CLR+3.5.21022;+.NET+CLR+1.1.4322) 500 0 0 187

Does anyone have code to check for a non-existant session variable? In .NET 1.1 Session("PalletID") = NULL was good enough, in .NET 2.0 it crashes

 

[tsuji]

>If Session("PalletID") = Nothing Then
If Session("PalletID") is an object (make sure it is), to check if it is nothing, it is not "=", it is "is".
[tt] If Session("PalletID") [red]is[/red] Nothing Then[/tt]

 

[vicvirk]

The other way to do it (without making it an object):

<%
if isNull(session("var")) or isEmpty(session("var")) or trim(session("var")) = "" then session("var") = 0
%>

^ that will check all instances of "blanks"

TIP: trying googling the answer before posting, you'll find that more times than not someone else somewhere has had the same request and posted an answer online.
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I have recently been semi-converted to ensuring all my code (well most of it) works in both javascript and non-javascript enabled browsers