>So, I'm still at a loss as to how to update a cookie value when it already
exists. Any suggestions welcome.
Well, as no-one has replied yet, I might as well show my latest failure
;-(
The following code is a complete page that demonstrates my equally
complete failure at using cookies. If you save this as an .aspx and load
it in a browser, it tells you it is creating the cookie. If you reload
the page, it tells you it is changing the value. If you reload it again,
it tells you it is removing the cookie.
All of this is exactly what I expected, except that it didn't work. If
you close the browser window at any stage and reload the page, it always
shows the "creating" message. So, it seems that it's not actually
creating the cookie at all.
Please can someone help me here. I've spent hours trying to solve what
should be a really simple problem. TIA
<%@ Page Language="C#" Debug="true" %>
<script runat="server">
void Page_Load(Object o, EventArgs e) {
string cookieName = "fred";
if (Request.Cookies[cookieName] == null) {
// the cookie does not exist. Create it
x.Text = "Creating a new cookie";
HttpCookie cookie = new HttpCookie(cookieName, "newcookie");
cookie.Expires = DateTime.Now.AddMonths(1);
Response.Cookies.Add(cookie);
} else if (Request.Cookies[cookieName].Value == "newcookie") {
// the cookie was created last time this page was called
x.Text = "Changing value from " + Request.Cookies[cookieName].Value + " to oldcookie";
Response.Cookies[cookieName].Value = "oldcookie";
} else {
// the cookie was created before the previous call to this page. Delete it
x.Text = "Removing the cookie whose value is " + Request.Cookies[cookieName].Value;
Response.Cookies.Remove(cookieName);
}
}
</script>
<html>
<body>
<asp:Literal ID="x" EnableViewState="false" RunAt="server" />
</body>
</html>
--
Alan Silver
(anything added below this line is nothing to do with me)
