ASP.NET Session Variables

I have tried that but i get the same error!

From time to time I get the same error if I try to call a session object that has no value.  You might try this

if Session("chkusername").ToString()  &  "" <> "" Then
     objChkUsername = Session("chkusername").ToString()
     Edit = 1
Else
     Edit= 0
End If

Still the same error!

does anyone know how to check a session variable in asp.net?

<script runat="server">
Sub Page_Load (s as object, e as eventargs)
        Dim objChkUsername As String= Session("chkusername")
        Dim edit As Integer
 
        If IsDBNull(objChkUsername)  Or objChkUsername=" "  Then
              edit = 0
        Else
              edit = 1
        End If
    End Sub
</script>

First line from daffodils should be

If Not Nothing(Session("chkusername")) Then

Good luck

hi there,
Thank you all for helping to work that out, it seems the session variable may have been empty. I will give main points to yzlat and some to daffodils. I have a new problem now however, which i will give out more points for:

I am trying to show text on the webpage if the value of edit = 1 but i get another error:

Name 'edit' is not declared.

with this code:

<% If edit = 1 Then %>
EDIT MODE
<% End If  %>

Apologies in advance for asking what must be very basic questions. I find these are the ones that are very hard to find answers for sometimes!

Why not do this server side?  something like this

dim edit as integer

If Edit = 1 then
     label1.text = "whatever you want to say on the page"
Else
    label1.text = "Whatever you say for this condition"
End If

It would probably be best if you closed out this questions and started another.  You can reference this one in the new question.

New thread for this question:

http://www.experts-exchange.com/Programming/Programming_Languages/Dot_Net/ASP_DOT_NET/Q_21140575.html

firstly take the procedure out of the load event just incase the error is to do with the vars in the load procedure call, and set them to run from and onclick event of a button, I say this because it has happened before despite how unlikely it may be.

Are you writing this in the code behind ?

if so then as previously standard practice is to vlidate the source exists prior to setting and objects value to it.

if the session var exists then do something else do something else leave the edit value be

dim edit as integer = 0
if not IsNothing(session("MySessionVar")) then edit=1

Hi all, got similar problem on handling of Session in ASP.NET.....

I am using ASP.NET with C#. I always face the problem of session expire. Is there any way of setting session time out duration.

its set in the web.config file look it up or post a topic with points