ASP.Net Cookie Problems -


i have cookie when user loges in:

httpcookie cookie = new httpcookie("username");                     cookie.expires = datetime.now.adddays(1.0);                     cookie.value = txtusername.text;                     response.cookies.add(cookie);

and reads out in login-page when user visit again:

if (response.cookies["username"] != null) txtusername.text = response.cookies["username"].value;

but when log in, , after log out directly, cookie deleted. has neither exp-date nor value saved.

whot wrong?

if (response.cookies["username"] != null) txtusername.text = response.cookies["username"].value

should 

if (request.cookies["username"] != null) txtusername.text = request.cookies["username"].value

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