create method fore cookies in asp pages

//this code in new class called utility , not in form load , when i need to write request or response in utility class it never written just "response or request " , i see only httpresponse i need to see just response , I hope that you explain to me in detail what exactly do so there are not mistakes, and execute in utilitys class >>>>>>>> look in Comment below.


public class utilitys
{

public void createCookie(string cookieName, string[] keys, string[] values, bool expired)
{

HttpCookie c = new HttpCookie(cookieName);
if (keys != null)
{
for (int x = 0; x < keys.Length; x++)
c.Values.Add(keys[x], values[x]);
if (!expired)
c.Expires = DateTime.Now.AddYears(5);
}
else
c.Expires = DateTime.Now.AddYears(-5);
// look in this step >>>>>>>
res.Cookies.Add(c);


}

public string readFromCookies(string cookieName, string key, HttpRequest req)
{
try
{
return req.Cookies[cookieName][key].ToString();
}
catch
{
return null;
}
}

public void removeCookie(string cookieName, HttpResponse res)
{
// and look in this step >>>>>>>>>>>>>>>
createCookie(cookieName, null, null, false, res);

}



}</pre>

Tags: C#