Session Timeout Issue in ASP.Net MVC

In my application user upload movies and the size of movies can be around 100MB or more. For this reason im doubtful that if any user have a slow connection it could take hour开发者_运维问答s and if it takes so much time then my application session will be expired. What should i do to cater this issue? My application is on ASP.Net MVC2 with C# and hosted on Windows server 2008

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Fraz,

I don't know if you have javascript enabled in your app or not. if you do, you could trigger a setInterval method UNTIL the movie has succesfully uploaded (i.e. on completion of the upload, trigger the $ajax complete function to stop the time.

anyway, here's the rough idea:

javascript - called inside the javascript upload function:

function keepMeAlive(imgName) {
    myImg = document.getElementById(imgName);
    if (myImg) myImg.src = myImg.src.replace(/\?.*$/, '?' + Math.random());
}
callbackID = window.setInterval("keepMeAlive('keepAliveIMG')", 100000);

html (just any old image in the document):

<img id="keepAliveIMG" width="1" height="1" src="http://www.some.url/someimg.gif?" />

in the image complete function, add:

clearInterval(callbackID);

also, see:

http://www.dotnetcurry.com/ShowArticle.aspx?ID=453&AspxAutoDetectCookieSupport=1

you could off course append headers to the action that you 'hit' when you upload the movie. i.e. along the lines of (*disclaimer - untested *!!):

// don't know what your action signiture is like
public ActionResult AddMovie()
{
    Response.AddHeader("Refresh", Convert.ToString(((Session.Timeout * 60) - 10)));
    return PartialView("UpdateInProgress");
}

then inside the page, have a div that gets updated with the partialview (UpdateInProgress) at a set interval. Of course, possibly will update the entire page, rather than just the discreet div but you'll hopefully be able to get an idea of the possibilities.

see:

http://tech.tiffanyandjeremy.com/Articles/Reusable-embedded-keep-session-alive-with-HtmlHelper-for-ASP-NET-MVC-1-0-csharp

or:

http://naspinski.net/post/Automatically-refresh-your-users-Session-behind-the-scenes-using-jQuery-and-AspNet.aspx

either appraoch is viable, tho i 'prefer' the 2nd one as it's slightly 'cleaner'

just a few ideas!! :)