public ActionResult UpdateCalendar(string startDateRange, string endDateRange)
{
DateTime startDate = DateTime.Parse(startDateRange);
DateTime endDate = DateTime.Parse(endDateRange);
List <Sprint> sprints = _SprintService.GetSprintsWithinDateRange(
SessionHelper.GetCurrentProductId(User.Identity.Name, Session), startDate, endDate);
List <Release> releases = _ReleaseService.GetReleasesWithinDateRange(
SessionHelper.GetCurrentProductId(User.Identity.Name, Session), startDate, endDate);
JsonSchedule jsonSchedule = new JsonSchedule(releases, sprints, startDate, endDate);
return(new SecureJsonResult(jsonSchedule));
}