public async Task <IActionResult> OnPostAsync(int?id)
{
if (id == null)
{
return(NotFound());
}
Instructor instructor = await _context.Instructors
.Include(i => i.CourseAssignments)
.SingleAsync(i => i.ID == id);
if (instructor == null)
{
return(RedirectToPage("./Index"));
}
var departments = await _context.Departments
.Where(d => d.InstructorID == id)
.ToListAsync();
departments.ForEach(d => d.InstructorID = null);
_context.Instructors.Remove(instructor);
await _context.SaveChangesAsync();
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(string[] selectedCourses)
{
var newInstructor = new Instructor();
if (selectedCourses != null)
{
newInstructor.CourseAssignments = new List <CourseAssignment>();
foreach (var course in selectedCourses)
{
var courseToAdd = new CourseAssignment
{
CourseID = int.Parse(course)
};
newInstructor.CourseAssignments.Add(courseToAdd);
}
}
if (await TryUpdateModelAsync <Instructor>(
newInstructor,
"Instructor",
i => i.FirstName, i => i.LastName,
i => i.HireDate, i => i.OfficeAssignment))
{
_context.Instructors.Add(newInstructor);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
PopulateAssignedCourseData(_context, newInstructor);
return(Page());
}
public async Task <IActionResult> OnPostAsync(int?id)
{
if (id == null)
{
return(NotFound());
}
var student = await _context.Students.FindAsync(id); //this line needs to be changed after changing StudentContext Student to Students
if (student == null)
{
ErrorMsg = "Item does not exist anymore.";
return(Page());
}
try
{
_context.Students.Remove(student);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}catch (DbUpdateException)
{
return(RedirectToAction("./Delete", new { id, saveChangesError = true }));
}
}
// 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()
{
var emptyStudent = new Student();
// TryUpdateModel prevents overposting (security practice)
if (await TryUpdateModelAsync <Student>(
emptyStudent, "student", s => s.FirstName, s => s.LastName, s => s.EnrollmentDate))
{ // Only the fields mentioned above are changed, no other field data can be posted.
_context.Students.Add(emptyStudent); // Add method can not be asynchronous
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
return(Page());
/*if (!ModelState.IsValid)
* {
* return Page();
* }
*
* _context.Students.Add(Student); //this line needs to be changed after changing StudentContext Student to Students
* await _context.SaveChangesAsync();
*
* 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.Departments.Add(Department);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
public async Task <IActionResult> OnPostAsync(int?id)
{
if (id == null)
{
return(NotFound());
}
Course = await _context.Courses.FindAsync(id);
if (Course != null)
{
_context.Courses.Remove(Course);
await _context.SaveChangesAsync();
}
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(int id)
{
var studentToUpdate = await _context.Students.FindAsync(id);
if (studentToUpdate == null)
{
return(NotFound());
}
if (await TryUpdateModelAsync <Student>(
studentToUpdate,
"student",
s => s.FirstName, s => s.LastName, s => s.EnrollmentDate))
{
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
return(Page());
}
