public virtual PartialViewResult List(Guid activityId)
{
var subscribs = _subscribeService.Get(activityId).ToList();
var subscribersNames = subscribs.Count > 0
? _intranetMemberService.GetMany(subscribs.Select(s => s.UserId)).Select(u => u.DisplayedName)
: Enumerable.Empty <string>();
return(PartialView(ListViewPath, subscribersNames));
}