Prblem Working with Session

hi Fellows

i had a logout link !!
when the User click!
i used session.clear() through this i clear all the session objects
and then the page is being reponse .redirected to the default page!!

session becomes clear !
works ok until u Click back!
but if u click back button it goes back !!!
i dont want to happen this

how could it stopped

Feb 27 '09 #1

Subscribe Post Reply

1718

PRR

750

Expert 512MB

You need to check on each page whether user is authenticated or not ...and on logout redirect the user to login page or some other page accessible to all...

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if (User.Identity.IsAuthenticated)

        {

            //go on

        }

        else

        {

            //clear session 

            // Redirect to login page

        }

In case you are using generic identity you need to set the current thread principal ..

Feb 27 '09 #2

Vkas

hi Deep

I am checking it works ok

Un Authorize user is being checked in each page using a id!

but after the user clicks the logout
this is the code !
Session.Clear()
Response.Redirect("Default.aspx")

if i try to access the page throug address bar the page is responded to the default page ! as the user had been logged out and id is being cleared from the session
but

if i clicked back the user again become log in !!

Feb 27 '09 #3

Vkas

where iz every one yar !

i havent tesse any of you so much

Feb 28 '09 #4

alamodgal

hiiiiiiiiiiiii
You can use this script code in <head> tag of your pages

<script>
history.forward();
</script>

this will not save your previous history and your back button doesn't show previous page of yours!

Feb 28 '09 #5

kunal pawar

297

100+

use session.abandant();

which dispose all session values. Please do not use session.clear();

Mar 2 '09 #6

Vkas

what is the difference Between Both
Can u tell me ! Kunal

Mar 2 '09 #7

kunal pawar

297

100+

I am expecting question.

Session.Abandon:
1) Cancels the current Session.
2) It destoys session from memory.

Session.Clear
1) clears all values from Session state
2) Session Variables are present with blank or null value.

Mar 2 '09 #8

Vkas

ok thank you

after i done session .abundant ()
i redirect my page to my Home page !

but when the user clicks on back button it again goes in page yet i have made a check that if the session value becomes empty then user should be redirected to the Home page ! any idea how can i stop the user to go back when he is log out

Mar 2 '09 #9

kunal pawar

297

100+

From log out page do not redirect to home page
create intermediat page, onload of that page it redirectes to home page

for eg. As user click on log out

session.Abandon();
Response.Redirect("ClearHistory.aspx")

In ClearHistory.aspx

using javascript in body tag

onload="windows.location='Default.aspx';"

So when click on logout it redirect to clearHistory and this page alway redirect to Default.aspx so user can not go back

Mar 2 '09 #10

PRR

750

Expert 512MB

have you enabled anonymous login? or denied anonymous users?
also

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FormsAuthentication.SignOut();

Mar 2 '09 #11

Vkas

y i have done that the method that Kunal said worked in my practice site

but i think this method is not a very gud technique i will now make anew login page then would try to Use yours Method

Mar 2 '09 #12

Frinavale

9,735

Expert Mod 8TB

Just so you know, when you click the "back" button in the Web Browser a cached version of your page is shown.

This means that there is no call made to the web server....it is simply showing the person the content of the page that was cached by the browser.

Look into using <meta> tags to tell the web browser not to cache the content...such as:

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<META HTTP-EQUIV="CACHE-CONTROL" CONTENT="NO-CACHE, must-revalidate, max-age=0">

<meta http-equiv="expires" content="0">

<meta http-equiv="Pragma" content="no-cache">

From experience, I've found that meta tags don't always work...but if you research this you will have a much better idea of what needs to be done to prevent the cached page from being displayed when the back button is clicked.

Mar 2 '09 #13

Vkas

ok Frinavale!

I will research on the thing that you have told me !

and then will try to impliment them in my Site ! thanks again!

If i couldnt then Will get help from all of the Experience people here!

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