简单注销用户控件

<asp:Button ID="btnLogout" runat="server" Text="注销" onclick="btnLogout_Click" />

        protected void Page_Load(object sender, EventArgs e)
        {
            Response.Buffer = true;
            Response.ExpiresAbsolute = DateTime.Now.AddDays(-1);
            Response.Expires = 0;
            Response.CacheControl = "no-cache";

        }

        protected void btnLogout_Click(object sender, EventArgs e)
        {
            Session.Clear();
            Response.Redirect("../Login.aspx");
        }