Untitled

Global variable in ASP.NET
private static bool _isProcessingNewIllustrationRequest;

    public static bool IsProcessingNewIllustrationRequest
    {
        get { return _isProcessingNewIllustrationRequest; }
        set { _isProcessingNewIllustrationRequest = value; }
    }

public ActionResult CreateNewApplication()
    {
        if (!Global.IsProcessingNewIllustrationRequest)
        {
            Global.IsProcessingNewIllustrationRequest = true;

            // DO WORK... RUN CODE
            Global.IsProcessingNewIllustrationRequest = false;
            return View("Index", model);
        }
        else
        {
            // DISPLAY A MESSAGE THAT ANOTHER REQUEST IS IN PROCESS
        }
    }

private Object thisLock = new Object();
public ActionResult CreateApplication()
        {
            ILog log = LogManager.GetLogger(typeof(Global));
            string aa = this.ControllerContext.HttpContext.Session.SessionID;
            log.Info("MY THREAD: " + aa);

            lock (thisLock)
            {
                Thread.Sleep(8000);

                DO SOME STUFF

            }
        }

public static Mutex _myMutex = new Mutex(false, @"GlobalSomeUniqueName");

public ActionResult CreateNewApplication()
{
    if (_myMutex.WaitOne(TimeSpan.Zero))
    {
        // DO WORK... RUN CODE
        _myMutex.ReleaseMutex();
        return View("Index", model);
    }
    else
    {
        // DISPLAY A MESSAGE THAT ANOTHER REQUEST IS IN PROCESS
    }
}