filter

gistfile1.txt

 ticketsViewModelsCollection =
                    ticketsRepo.GetAll()
                        .Where(
                            m =>
                                (m.TicketStateId == null || m.TicketStateId == model.StateId)
                                && model.Direction == TicketDirection.In
                                    ? model.EmployeeId == null
                                          ? m.RecipientId == model.DepartmentId
                                          : m.RecipientId == model.EmployeeId
                                    : model.EmployeeId == null
                                        ? m.SenderId == model.DepartmentId
                                        : m.SenderId == model.EmployeeId)
                        .Select(ModelsMapper.GetTicketViewModel)
                        .ToList();