public async Task <IActionResult> OnPostAsync(int?id, bool?saveChangesError = false)
{
if (id == null)
{
return(NotFound("El Id del registro no Existe!"));
}
var student = await _context.Students.AsNoTracking().FirstOrDefaultAsync(e => e.StudentId.Equals(id));
//Student = await _context.Students.FindAsync(id);
if (Student == null)
{
return(NotFound("Student no encontrado con ese Id."));
}
try
{
_context.Students.Remove(Student);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
catch (DbUpdateException ex)
{
ErrorMessage = ex.Message;
return(RedirectToAction("./Delete", new { id, saveChangesError = true }));
}
}
public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return(Page());
}
_context.Attach(Course).State = EntityState.Modified;
try
{
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!CourseExists(Course.CourseId))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToPage("./Index"));
}
public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return(Page());
}
_context.Courses.Add(Course);
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", s => s.FirstMidName, s => s.LastName,
s => s.EnrollmentDate))
{
_context.Students.Add(emptyStudent);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
return(null);
}
public async Task <IActionResult> OnPostAsync(int?id)
{
if (!ModelState.IsValid)
{
return(Page());
}
var studentToUpdate = await _context.Students.FindAsync(id);
// _context.Attach(Student).State = EntityState.Modified;
if (await TryUpdateModelAsync <Student>(studentToUpdate, "student", s => s.FirstMidName,
s => s.LastName, s => s.EnrollmentDate))
{
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
//try
//{
// await _context.SaveChangesAsync();
//}
//catch (DbUpdateConcurrencyException)
//{
// if (!StudentExists(Student.StudentId))
// {
// return NotFound();
// }
// else
// {
// throw;
// }
//}
//return RedirectToPage("./Index");
return(Page());
}
