asp.net退出，注销

 protected void Page_Load(object sender, EventArgs e)
    {
        StringBuilder Text = new StringBuilder();
        Text.Append("<script language=JavaScript>");
        Text.Append("function DelConfirm() ");
        Text.Append("{");
        Text.Append("window.opener=null;parent.window.close(); }");
        Text.Append("</script>");

        string scriptString = Text.ToString();

        //判断客户端脚本是否向页注册　
        if (!IsClientScriptBlockRegistered("DelConfirm"))
        {
            RegisterClientScriptBlock("DelConfirm", scriptString);
        }
        btnExit.Attributes.Add("onclick", "return DelConfirm()");

           }

 

 protected void btnZhuxiao_Click(object sender, ImageClickEventArgs e)
    {
        Session.Clear();
        Session.Abandon();
        Response.Write("<script>window.open('../login.aspx','_parent')</script>");
    }
    protected void btnExit_Click(object sender, ImageClickEventArgs e)
    {
        Session.Clear();
        Session.Abandon();
        //Response.Write("<script>window.opener=null;parent.window.close();</script>");
    }