c# - how to check the users website login in Asp.net -


i completed asp.net website login screen. having levels of login admin,user...etc.

suppose if employee logged in website 1 pc , tried login same employee pc,i need display message saying same employee logged in pc , need logout first login.

same has done same pc different browser , same browser different tab login.(same gmail or facebook login).

please tell method same

note:without using membership concept(asp.net-3.5,sql server 2008).


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