problem with cookies used to pass object between web part page

Question

Hi,
I haven't used cookies before so I'm probably misunderstanding some very basic things here.  Because what I have is not working.  The cookie I try to read is empty.  I thought all I'd have to do to is something like this in the web part where I want to write out to a cookie (Please see code below. )

 I know I read a post on here about a cookie collection etc.. and it seemed like a lot of overkill.  So I don't know what I'm missing here.  Also what infrastructure exists to look at cookies etc... - seems like you can't just navigate to a directory and see them.  I feel really dumb about all this.  Thanks for any help or pointers.


protected override void Render(writer)
{
 .
.
HttpCookie aCookie - new HttpCookie("saveobject");
aCookie.Value = saveobject;
aCookie.Expires = DateTime.Now.AddDays(1);
Page.Response.Cookies.Add(aCookie);
}

then in the sharepoint page where I want to use the cookie value the web part code is:

in a preRender override

if(Page.Request.Cookies[saveobject] != null)
{
 string saveobj = Page.Request.Cookies["saveobj"].ToString();
}

Answer 1

Hi,

Try setting your cookie at pre-render.

Doing it during render may be too late to get the cookie onto the response header.

Paul.

Answer 2

Thanks for the suggestion. 

Because I wasn't feeling secure - i was sure it was some big strange problem - but turned out I just forgot

in Page.Request.Cookies["saveobj"].ToString();  to use
Page.Request.Cookies["saveobj"].Value; instead!