// To protect from overposting attacks, enable the specific properties you want to bind to, for
// more details, see https://aka.ms/RazorPagesCRUD.
public async Task <IActionResult> OnPostAsync(int[] selectedCourses)
{
if (!ModelState.IsValid)
{
return(Page());
}
//_context.Attach(Student).State = EntityState.Modified;
// Find the student you want to update and update all their "normal properties" (FirstName and LastName)
var studentToUpdate = await _context.Student.Include(s => s.StudentCourses).ThenInclude(sc => sc.Course).FirstOrDefaultAsync(m => m.StudentID == Student.StudentID);
studentToUpdate.FirstName = Student.FirstName;
studentToUpdate.LastName = Student.LastName;
// Separate method to update the courses because it can get complex
UpdateStudentCourses(selectedCourses, studentToUpdate);
try
{
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!StudentExists(Student.StudentID))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToPage("./Index"));
}
// To protect from overposting attacks, enable the specific properties you want to bind to, for
// more details, see https://aka.ms/RazorPagesCRUD.
public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return(Page());
}
_context.Student.Add(Student);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
public async Task <IActionResult> OnPostAsync(int?id)
{
if (id == null)
{
return(NotFound());
}
Student = await _context.Student.FindAsync(id);
if (Student != null)
{
_context.Student.Remove(Student);
await _context.SaveChangesAsync();
}
return(RedirectToPage("./Index"));
}