How to Kill A Session or Session ID ASP NET C

Question

How can I destroy a session  Session  Name    when the user clicks the logout button   I m looking through the ASP NET API Reference on MSDN and it doesn t seem to have much information  It seems rather limited  But I cannot find any other pages for ASP NET Classes etc   I have tried   Session Abandon    and Session Contents Remove  Name    neither of them work    I found these in a forum from a Google search

User · Answer

You kill a session like this   Session Abandon     If  however  you just want to empty the session  use   Session Clear

User · Answer

Session Abandon    This marks the session as Abandoned  but the session won t actually be Abandoned at that moment  the request has to complete first

User · Answer

It is also a good idea to instruct the client browser to clear session id cookie value   Session Clear    Session Abandon    Response Cookies  ASP NET SessionId   Value   string Empty  Response Cookies  ASP NET SessionId   Expires   DateTime Now AddMonths -10

User · Answer

Session Abandon    did not work for me either   The way I had to write it to get it to work was like this  Might work for you too   HttpContext Current Session Abandon

User · Answer

From what I tested   Session Abandon       Does nothing Session Clear         Removes the data contained in the session  Example  001  Session  test      test   002  Session Abandon    003  Print Session  test        Outputs   test    Session Abandon does only set a boolean flag in the session-object to true  The calling web-server may react to that or not  but there is NO immediate action caused by ASP    I checked that myself with the  net-Reflector   In fact  you can continue working with the old session  by hitting the browser s back button once  and continue browsing across the website normally   So  to conclude this  Use Session Clear   and save frustration   Remark  I ve tested this behaviour on the ASP net development server  The actual IIS may behave differently

User · Answer

Session  YourItem           Works great in  net razor web pages

User · Answer

The Abandon method should work  MSDN    Session Abandon      If you want to remove a specific item from the session use  MSDN    Session Remove  YourItem      EDIT  If you just want to clear a value you can do   Session  YourItem     null    If you want to clear all keys do   Session Clear      If none of these are working for you then something fishy is going on   I would check to see where you are assigning the value and verify that it is not getting reassigned after you clear the value   Simple check do   Session  YourKey      Test       creates the key Session Remove  YourKey          removes the key bool gone    Session  YourKey      null        tests that the remove worked

User · Answer

Session Abandon     is what you should use  the thing is behind the scenes asp net will destroy the session but immediately give the user a brand new session on the next page request  So if you re checking to see if the session is gone right after calling abandon it will look like it didn t work

User · Answer

Session Abandon   this will destroy the data   Note  this won t necessarily truly remove the session token from a user  and that same session token at a later point might get picked up and created as a new session with the same id because it s deemed to be fair game to be used

[c#] How to Kill A Session or Session ID (ASP.NET/C#)

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