hlGoogle.NavigateUrl = string.Format(
"https://www.google.com/calendar/render?action=TEMPLATE&text={0}&dates={1:yyyyMMddTHHmmss}/{2:yyyyMMddTHHmmss}&sprop=website:{3}&location={4}&details={5}",
EventName,
Convert.ToDateTime(FromDate),
Convert.ToDateTime(ToDate),
Request.Url.Host,
Location,
Details
);