asp.net 删除cookies同时注销登录禁用IE后退事件 框架里处理

protected void Button1_Click(object sender, EventArgs e)
{
HttpCookie aCookie;
string cookieName;
int limit = Request.Cookies.Count;
for (int i = 0; i < limit; i++)
{
cookieName = Request.Cookies[i].Name;
aCookie = new HttpCookie(cookieName);
aCookie.Expires = DateTime.Now.AddDays(-1);//设置Cookie过期
Response.Cookies.Add(aCookie);
}
//if (Request.IsAuthenticated == false)
//{
Response.Write(" <mce:script type=/"text/javascript/"><!--
top.location.href= 'Login.aspx ';
// --></mce:script> ");
Response.End();
//}

}

Response.Write(" <script type=/"text/javascript/"> top.location.href= 'Login.aspx '; </script> ");

Response.End();

Cookie是不能删除的，只能设置Cookie过期.