Using cookie in asp.net mvc c#

I m not sure I understand if this is a question about how to properly send cookies to the client or some bug with your querystring params. So I ll post the proper way of sending cookies and feel free to correct me if I misunderstood.

In any case though, I believe this:

HttpCookie cookie = new HttpCookie("search");

will reset the search cookie

To get a cookie:

HttpCookie cookie = HttpContext.Request.Cookies.Get("some_cookie_name");

To check for a cookie’s existence:

HttpContext.Request.Cookies["some_cookie_name"] != null

To save a cookie:

HttpCookie cookie = new HttpCookie("some_cookie_name");
HttpContext.Response.Cookies.Remove("some_cookie_name");
HttpContext.Response.SetCookie(cookie );