示例#1
0
        public void UpdateStudentEvents(BPA_TrackerContext context,
                                        string[] selectedEvents, Student StudentToUpdate)
        {
            if (selectedEvents == null)
            {
                StudentToUpdate.AssignEvents = new List <AssignEvent>();
                return;
            }

            var selectedEventsHS = new HashSet <string>(selectedEvents);
            var StudentEvents    = new HashSet <int>
                                       (StudentToUpdate.AssignEvents.Select(c => c.Event.EventID));

            foreach (var Event in context.Event)
            {
                if (selectedEventsHS.Contains(Event.EventID.ToString()))
                {
                    if (!StudentEvents.Contains(Event.EventID))
                    {
                        StudentToUpdate.AssignEvents.Add(
                            new AssignEvent
                        {
                            StudentID = StudentToUpdate.StudentID,
                            EventID   = Event.EventID
                        });
                    }
                }
                else
                {
                    if (StudentEvents.Contains(Event.EventID))
                    {
                        AssignEvent EventToRemove
                            = StudentToUpdate
                              .AssignEvents
                              .SingleOrDefault(i => i.EventID == Event.EventID);
                        context.Remove(EventToRemove);
                    }
                }
            }
        }
示例#2
0
        public async Task <IActionResult> OnPostAsync(string[] selectedCourses)
        {
            if (!ModelState.IsValid)
            {
                return(Page());
            }

            var newStudent = new Student();

            if (selectedCourses != null)
            {
                newStudent.AssignEvents = new List <AssignEvent>();
                foreach (var course in selectedCourses)
                {
                    var coursetoadd = new AssignEvent
                    {
                        EventID = int.Parse(course)
                    };
                    newStudent.AssignEvents.Add(coursetoadd);
                }
            }

            if (await TryUpdateModelAsync <Student>(
                    newStudent,
                    "Student",
                    i => i.FirstName, i => i.LastName,
                    i => i.StudentPhone, i => i.StudentEmail,
                    i => i.ParentName, i => i.ParentPhone,
                    i => i.ParentEmail))
            {
                _context.Student.Add(newStudent);
                await _context.SaveChangesAsync();

                return(RedirectToPage("./Index"));
            }
            PopulateAssignedEventData(_context, newStudent);
            return(Page());
        }