How to write session timeout in asp.net

Question

i am new to asp.net..please help me to write code for setting session timeout and how to implement in all pages,i tried out using web config method,but not getting,i am nearing to deadline. This is my code

Answer 1

From code:

Session.Timeout = 60; // this will set 60 min timout

From config:

<sessionState timeout="60" />

Answer 2

Using Web.config

<sessionState
timeout="number of minutes"............

Full reference HERE !

or

Using Forms authentication

<system.web>
<authentication mode="Forms">
      <forms timeout="50"/>
</authentication>  
<sessionState timeout="60"  />
</system.web>