public ActionResult Roles(string EventID)
        {
            getSharePointData();
            ViewBag.Title         = "Contoso Events Security";
            ViewBag.DatabaseCheck = checkDB();
            ViewBag.CalendarCheck = eVentCalendarExists;
            ViewBag.IsSiteOwner   = isSiteOwner;
            ViewBag.IsCoordinator = isCoordinator(EventID);
            Models.EventData        eventData    = new Models.EventData();
            List <Models.EventRole> coordinators = eventData.Coordinators(EventID);

            foreach (Models.EventRole coordinator in coordinators)
            {
                members.Remove(coordinator.MemberName);
            }
            ViewBag.SiteMembers  = members;
            ViewBag.EventID      = EventID;
            ViewBag.Coordinators = coordinators;
            return(View());
        }