1、登录cookie建立
Response.Cookies.Add(new HttpCookie("AuthName", realName)
{ Expires = DateTime.Now.AddDays(1) });
HttpCookie nameCookie = Request.Cookies"AuthName";
// 创建认证Cookie
HttpCookie authCookie = new HttpCookie("AuthUser");
authCookie.Value = username;
authCookie.Expires = DateTime.Now.AddDays(1); // 1天有效期
Response.Cookies.Add(authCookie);
2、登录cookie读取建立
HttpCookie nameCookie = Request.Cookies"AuthName";
((Label)Master.FindControl("lblUsername")).Text = Server.UrlDecode(nameCookie.Value);