c# - 在 ASP.NET 中 5 秒后重置表单和页面状态

Question

我有一个表单，用户提交并获得成功消息。现在我需要重定向回表单并清空它，但我似乎无法让页面在 5 秒后自行刷新。

这就是我到目前为止所得到的。有了这个，我得到了 Response is not available in this context，这意味着我需要一些其他方式来刷新。

protected void bSubmit_Click(object sender, EventArgs e)
    lblFeedback.Text = "Your message has been sent.";
    lblFeedback.Visible = true; // Show the success-message
    mainForm.Visible = false; // Hide the form the user just filled in

    reTimer = new System.Timers.Timer(1000 * 5);
    reTimer.Elapsed += new System.Timers.ElapsedEventHandler(RefreshToForm);
    reTimer.Enabled = true;
}

private void RefreshToForm(object sender, System.Timers.ElapsedEventArgs e)
{
    reTimer.Enabled = false;
    reTimer = null;
    Response.Redirect(Request.RawUrl);
}

Answer 1

尝试在响应中添加 Refresh header 而不是使用计时器:

protected void bSubmit_Click(object sender, EventArgs e)
    lblFeedback.Text = "Your message has been sent.";
    lblFeedback.Visible = true; // Show the success-message
    mainForm.Visible = false; // Hide the form the user just filled in

    Response.AddHeader("Refresh", "5"); // Refresh the page after 5 seconds
}