vb 5秒后重定向到新页面。延迟

Question

以下示例无法在5秒后延迟页面重定向。 -标头更新似乎无效。是否有纯VB解决方案是报头是唯一的解决方法？想到只是运行一个计时器来延迟下一行执行？

尝试过也注释掉了部分-仍然没有触发标题更改。

Dim TF As String = ResetNewPassword(uName, pAnwser, newPassword)
Dim dateUpdated As Boolean = UpdateLastLoginDate(uName)
    If TF Then
        uEmail = u.Email
        Label2.Text = "Users password has been updated"
        Training.xMail(uEmail, Label2.Text, "Password Changed")
        Response.AppendHeader("REFRESH", "5;URL=Default.aspx")

                'Dim meta As New HtmlMeta()
                'meta.HttpEquiv = "Refresh"
                'meta.Content = "5;url=Page2.aspx"
                'Me.Page.Controls.Add(meta)

        PassQuestion1.Text = "You will now be redirected in 5 seconds"
    Else
        Label2.Text = "Users password failed to update please try again!!!"
        Training.Mail("mail_user_acct", Label2.Text, "Password Failed - resetPassword")
    End If