Auto logout in asp.net c#

You need to set your session timeout to 15Minutes. And yes, expire only the session, it will not close the screen.

http://forums.asp.net/t/1467740.aspx/1?Update+my+DB+Table+on+Session+Timeout[^]

Always its better to Create a session time limit to the user when he login's .Read the MSDN documentation at MSDN

Usually, you set the session timeout, and you can additionally add a page header to automatically redirect the current page to a page where you clear the session right before the session timeout.
<a href="http://aspalliance.com/1621_Implementing_a_Session_Timeout_Page_in_ASPNET.2">Link</a>
<pre>
<pre lang="cs">
namespace SessionExpirePage
{
    public partial class Secure : System.Web.UI.MasterPage
    {
        public int SessionLengthMinutes
        {
            get { return Session.Timeout; }
        }
        public string SessionExpireDestinationUrl
        {
            get { return "/SessionExpired.aspx"; }
        }
        protected override void OnPreRender(EventArgs e)
        {
            base.OnPreRender(e);
            this.PageHead.Controls.Add(new LiteralControl(
                String.Format("<meta http-equiv='refresh' content='{0};url={1}'>",
                SessionLengthMinutes*60, SessionExpireDestinationUrl)));
        }
    }
}

The SessionExpireDestinationUrl should link to a page where you clear the session and any other user data.
When the refresh header expires, it will automatically redirect them to that page

.

you can use session and login authentication functionality....!!

Hi there,

Think a bit out of the box? :)

Set the session to expire in 15 minutes, so the user will have to log in again, so the browser part is taken care of.

Now you want to update the database. Instead, why don't you store the last activity date and time of the user. Each time a post back happens, check whether the difference between the the "LastActivityDate" and the current date is greater than 15 minutes, if so do whatever you want (update the database, log the user out, redirect the user, etc.) If the time difference is less than 15 minutes, update the "LastActivityDate" to the current date and time :)

Furthermore, you can define a global constant, based on which you set the session timeout duration and perform other calculations. Therefore, in a case where you want to change the duration from 15 minutes to 5 minutes or 6 hours, you just have to update that constant. If I were you I'd define a constant public const int MaxIdleTime = 900; I.e. keep the constant in seconds :)

Hope this helps :) Regards

Hope It is Help You.

Save Changes on Close of Browser or When Exiting the Page[^]

Thank You.