C# - How To Prevent The Session From Expiring While Using AJAX
Sep 17, 2010
I have a .Net 3.5 website which uses windows authentication and expires the session using a meta tag on the prerender of my base masterpage class.
protected override void OnPreRender(EventArgs e)
{
base.OnPreRender(e);
if (Response.ContentType == "text/html")
this.Page.Header.Controls.Add(new LiteralControl(
String.Format("<meta http-equiv='refresh' content='{0};url={1}'>",
SessionLengthMinutes * 60, SessionExpireDestinationUrl)));
}
This works well for pages that do full post backs. However there are a few pages in my application where the user does a lot of work that is inside of an update panel. My company's policy is a timeout of 15 minutes. Which means, after 15 minutes of working inside of an update panel page, the user gets redirected to the application splash page.
Is there a way to reset or extend the meta tag on an async postback? Or perhaps a better way to accomplish this entirely?
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