public async Task <IActionResult> OnPostAsync(int?id)
{
if (id == null)
{
return(NotFound());
}
var student = await _context.Student
.AsNoTracking()
.FirstOrDefaultAsync(m => m.ID == id);
if (student == null)
{
return(NotFound());
}
try
{
_context.Student.Remove(student);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
catch (DbUpdateException /* ex */)
{
//Log the error (uncomment ex variable name and write a log.)
return(RedirectToAction("./Delete",
new { id, saveChangesError = true }));
}
}
public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return(Page());
}
_context.Attach(Instructor).State = EntityState.Modified;
try
{
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!InstructorExists(Instructor.ID))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToPage("./Index"));
}
public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return(Page());
}
_context.Instructors.Add(Instructor);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
public async Task <IActionResult> OnPostAsync(int?id)
{
if (id == null)
{
return(NotFound());
}
Instructor = await _context.Instructors.FindAsync(id);
if (Instructor != null)
{
_context.Instructors.Remove(Instructor);
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"));
}
public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return(Page());
}
var emptyStudent = new Student();
if (await TryUpdateModelAsync <Student>(
emptyStudent,
"student", // Prefix for form value.
s => s.FirstMidName, s => s.LastName, s => s.EnrollmentDate))
{
_context.Student.Add(emptyStudent);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
return(null);
}
