what is the default expiration time of a cookie

Question

By default what will be the expiration time of a cookie added using C# code?

    HttpCookie myCookie= new HttpCookie("myCookie");
    myCookie.Value = txtCookie.Text;       
    // Add the cookie.
    Response.Cookies.Add(myCookie);

Bobbe

Answer 1

The default Expires value for a cookie is not a static time, but it creates a Session cookie. This will stay active until the user closes their browser/clears their cookies. You can override this as required.

From the linked page:

Setting the Expires property to MinValue makes this a session Cookie, which is its default value

Forwhy

And the session cookie expires in 14 days by default (in Owin), see code here github.com/yreynhout/katana-clone/blob/master/src/… – Overlord

It's not specific to C#, right? It's default behaviour in browsers as well? Like when you do document.cookie = 'asd=123' it persists till you close the browser too unless you specified an expiration time? – Gargoyle

Answer 2

20 minutes.
In IIS, click on your website, and go to Session State. In the second box (Cookie Settings), you can change the time out(in minutes).

Tirade

I downvoted this because this is for the Session cookie. This will not affect the timeout in the code shown in the original answer. – Forwhy

And this timeout is probably for the server-side session timeout. This has nothing to do with cookie expiry time. – Fineable