How to delete cookie from .Net [duplicate]

Question

Possible Duplicate:
Delete cookie on clicking sign out

I want to delete cookies when the user logout.

Here is my code:

 if (HttpContext.Current.Request.Cookies["currentUser"] != null)  {      DeleteCookie(HttpContext.Current.Request.Cookies["currentUser"]);  }          public void DeleteCookie(HttpCookie httpCookie)         {             try             {                 httpCookie.Value = null;                 httpCookie.Expires = DateTime.Now.AddMinutes(-20);                 HttpContext.Current.Request.Cookies.Add(httpCookie);             }             catch (Exception ex)             {                 throw (ex);             }         } 

But it doesn't work. Do you have any suggestion?

Answer 1

 HttpCookie currentUserCookie = HttpContext.Current.Request.Cookies["currentUser"];  HttpContext.Current.Response.Cookies.Remove("currentUser");  currentUserCookie.Expires = DateTime.Now.AddDays(-10);  currentUserCookie.Value = null;  HttpContext.Current.Response.SetCookie(currentUserCookie); 

It works.

Answer 2

Instead of adding the cookie, you should change the Response's cookies Expires to a value in the past:

if (Request.Cookies["currentUser"] != null) {     Response.Cookies["currentUser"].Expires = DateTime.Now.AddDays(-1);    } 

Sidenote: Instead of throw ex you should just throw it to keep its stacktrace. C#: Throwing Custom Exception Best Practices