protected void Page_Load(object sender, EventArgs e)
{
this.Response.AddHeader("Last-Modified", DateTime.Now.ToString("U", DateTimeFormatInfo.InvariantInfo));
DateTime IfModifiedSince;
if (DateTime.TryParse(this.Request.Headers.Get("If-Modified-Since"), out IfModifiedSince))
{
if ((DateTime.Now - IfModifiedSince.AddHours(8)).Seconds < 10)
{
Response.Status = "304 Not Modified";
Response.StatusCode = 304;
return;
}
}
Thread.Sleep(1000);
}
