Remove or Reset Cookies

Question

I am setting a cookie Request.Cookies("TemplateName").value on one of my pages(page 3) of my application. Now I can navigate from page 3 to page 4 and page 2 and retain the value of the cookie. But now when I logout and login again it still has the value, how can I reset the value of the cookie to be blank "" when I start a new instance?

I tried:

Request.Cookies("TemplateName").Expires = Now
Request.Cookies("TemplateName").value = "" 

On my homepage, but the cookie still retains the value on page 2 and 3.

Answer 1

You need to use the Response not the Request

Response.Cookies["TemplateName"].Value = "";

Response.Cookies["TemplateName"].Expires = DateTime.Now;

EDIT For VB.

Dim subkeyName As String
subkeyName = "userName"
Dim aCookie As HttpCookie = Request.Cookies("userInfo")
aCookie.Values.Remove(subkeyName)
aCookie.Expires = DateTime.Now.AddDays(1)
Response.Cookies.Add(aCookie)


Response.Cookies("userName").Value = "patrick"
Response.Cookies("userName").Expires = DateTime.Now.AddDays(1)

These Examples come right off the MSDN site

SideNote

Often people attempt to use

Request.Cookies.Remove("MyCookie");

Which will only remove the cookie from the "request collection", If you want to remove a cookie then you need to expire it. More info here