Keep session alive

Add page sessionloginalive.aspx in your project:

protected void Page_Load(object sender, EventArgs e)
{
Response.AddHeader(“Refresh”, Convert.ToString((Session.Timeout * 60) – 120));
}

Add iframe in master page within a body tag

<iframe id=”MaintainSession” src=”~/SessionloginAlive.aspx” style=”display:none” width=”0″ height=”0″ runat=”server”></iframe >

Add a Script in head section of master page

<script type=”text/JavaScript”>
<!–
function timedRefresh(timeoutPeriod) {
setTimeout(“location.reload(true);”, timeoutPeriod);
}
// –>
</script>

Add a onload parameter in body tag of a master page

onload=”JavaScript:timedRefresh(3590000);”