public ActionResult GetAllReport(Guid confId) { List <Guid> listId = new List <Guid>(); List <ReportsViewModel> model = new List <ReportsViewModel>(); if (confId != null) { listId = _conferencService.GetListReports(confId).ToList(); } foreach (var id in listId) { var report = _conferencService.GetReport(id); ReportsViewModel item = new ReportsViewModel { Id = report.Id, Title = report.Title, Author = report.Author, ConfId = confId }; model.Add(item); } return(PartialView("_GetAllReport", model)); }