How to determine a session expired or not

Posted Date: 09 May 2008	Resource Type: Code Snippets	Category: C# Syntax
Author: narasimha	Member Level: Gold
Rating:	Points: 10

override protected void OnInit(EventArgs e)
{
base.OnInit(e);

//check to see if the Session is null (doesnt exist)
if (Context.Session != null)
{
//check the IsNewSession value, this will tell us if the session has been reset
if (Session.IsNewSession)
{
//now we know it's a new session, so we check to see if a cookie is present
string cookie = Request.Headers["Cookie"];
//now we determine if there is a cookie does it contains what we're looking for
if ((null != cookie) && (cookie.IndexOf("ASP.NET_SessionId") >= 0))
{
//since it's a new session but a ASP.Net cookie exist we know
//the session has expired so we need to redirect them
Response.Redirect("YourURL");
}
}
}
}

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