Question

When calling Response.Cookie.Add(new HttpCookie("MyCookie", "objValue")); where does the cookie saved? on Client Machine or Server Machine?

EDIT:
if saved in Client Machine, how can I read it from javascript then? I tried this kind of script.

function getCookie(c_name) {
    var i, x, y, ARRcookies = document.cookie.split(";");
    for (i = 0; i < ARRcookies.length; i++) {
        x = ARRcookies[i].substr(0, ARRcookies[i].indexOf("="));
        y = ARRcookies[i].substr(ARRcookies[i].indexOf("=") + 1);
        x = x.replace(/^\s+|\s+$/g, "");
        if (x == c_name) {
            return unescape(y);
        }
     }
}

I cannot get the cookie that I saved from code behind. When I look into the document.cookie object, it is just an empty string.

Scenario:

1. On Page_Init() on code behind. I create a cookie using Response.Cookie.Add(new HttpCookie("MyCookie", "cookieValue"));.
2. On Client side, I’m trying to read the cookie saved from code behind on page load using the snippet above, but it returns undefined

Answer 1

As Wikipedia explains, cookies string values that are stored on the client.
They are sent to server with each HTTP request as Cookie: headers.

You can store arbitrary objects in the server using session state.