Hi everybody,

I'm trying to go to the root of the problem. We're creating an ASP.NET MVC application.

I see the following code

DateTime expirationDate = DateTime.Now.AddMinutes(lockTime);

            System.Web.HttpCookie timeoutCookie = new System.Web.HttpCookie(
                SysManagerConstants.AUTH_TIMEOUT_COOKIE_KEY,
                expirationDate.ToLongTimeString());

            timeoutCookie.Expires = expirationDate;

            timeoutCookie.Path = "/";

            filterContext.HttpContext.Response.Cookies.Add(timeoutCookie);

Under certain scenarios I'm getting an error (when I am debugging the code) that the filterContext can not be modified after it was being sent.

I am not sure how to prevent this situation, e.g. that code executing in some sort of a loop.

So, the idea is to prevent this situation of appending something when the context already sent.

Thanks in advance.