public async Task <IActionResult> OnPostAsync(int?id)
{
if (id == null)
{
return(NotFound());
}
Student = await _context.Students.FindAsync(id);
if (Student == null)
{
return(NotFound());
}
try
{
_context.Students.Remove(Student);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
catch (DbUpdateException ex)
{
_logger.LogError(ex, ErrorMessage);
return(RedirectToAction("./Delete",
new { id, saveChangesError = true }));
}
}
// To protect from overposting attacks, 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)
{
//if (!ModelState.IsValid)
//{
// return Page();
//}
//_context.Attach(Student).State = EntityState.Modified;
//try
//{
// await _context.SaveChangesAsync();
//}
//catch (DbUpdateConcurrencyException)
//{
// if (!StudentExists(Student.ID))
// {
// return NotFound();
// }
// else
// {
// throw;
// }
//}
//return RedirectToPage("./Index");
var studentToUpdate = await _context.Students.FindAsync(id);
if (studentToUpdate == null)
{
return(NotFound());
}
if (await TryUpdateModelAsync <Student>(
studentToUpdate,
"student",
s => s.FirstMidName, s => s.LastName, s => s.EnrollmentDate))
{
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
return(Page());
}
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> OnGetAsync(int? id)
//{
// if (id == null)
// {
// return NotFound();
// }
// Department = await _context.Departments
// .Include(d => d.Administrator).FirstOrDefaultAsync(m => m.DepartmentID == id);
// if (Department == null)
// {
// return NotFound();
// }
// return Page();
//}
//public async Task<IActionResult> OnPostAsync(int? id)
//{
// if (id == null)
// {
// return NotFound();
// }
// Department = await _context.Departments.FindAsync(id);
// if (Department != null)
// {
// _context.Departments.Remove(Department);
// await _context.SaveChangesAsync();
// }
// return RedirectToPage("./Index");
//}
public async Task <IActionResult> OnPostAsync(int id)
{
try
{
if (await _context.Departments.AnyAsync(
m => m.DepartmentID == id))
{
// Department.ConcurrencyToken value is from when the entity
// was fetched. If it doesn't match the DB, a
// DbUpdateConcurrencyException exception is thrown.
_context.Departments.Remove(Department);
await _context.SaveChangesAsync();
}
return(RedirectToPage("./Index"));
}
catch (DbUpdateConcurrencyException)
{
return(RedirectToPage("./Delete",
new { concurrencyError = true, id = id }));
}
}
//// 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.Attach(Instructor).State = EntityState.Modified;
// try
// {
// await _context.SaveChangesAsync();
// }
// catch (DbUpdateConcurrencyException)
// {
// if (!InstructorExists(Instructor.ID))
// {
// return NotFound();
// }
// else
// {
// throw;
// }
// }
// return RedirectToPage("./Index");
//}
//private bool InstructorExists(int id)
//{
// return _context.Instructors.Any(e => e.ID == id);
//}
public async Task <IActionResult> OnPostAsync(int?id, string[] selectedCourses)
{
if (id == null)
{
return(NotFound());
}
var instructorToUpdate = await _context.Instructors
.Include(i => i.OfficeAssignment)
.Include(i => i.Courses)
.FirstOrDefaultAsync(s => s.ID == id);
if (instructorToUpdate == null)
{
return(NotFound());
}
if (await TryUpdateModelAsync <Instructor>(
instructorToUpdate,
"Instructor",
i => i.FirstMidName, i => i.LastName,
i => i.HireDate, i => i.OfficeAssignment))
{
if (String.IsNullOrWhiteSpace(
instructorToUpdate.OfficeAssignment?.Location))
{
instructorToUpdate.OfficeAssignment = null;
}
UpdateInstructorCourses(selectedCourses, instructorToUpdate);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
UpdateInstructorCourses(selectedCourses, instructorToUpdate);
PopulateAssignedCourseData(_context, instructorToUpdate);
return(Page());
}
// 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.Attach(Department).State = EntityState.Modified;
// try
// {
// await _context.SaveChangesAsync();
// }
// catch (DbUpdateConcurrencyException)
// {
// if (!DepartmentExists(Department.DepartmentID))
// {
// return NotFound();
// }
// else
// {
// throw;
// }
// }
// return RedirectToPage("./Index");
//}
public async Task <IActionResult> OnPostAsync(int id)
{
if (!ModelState.IsValid)
{
return(Page());
}
// Fetch current department from DB.
// ConcurrencyToken may have changed.
var departmentToUpdate = await _context.Departments
.Include(i => i.Administrator)
.FirstOrDefaultAsync(m => m.DepartmentID == id);
if (departmentToUpdate == null)
{
return(HandleDeletedDepartment());
}
// Set ConcurrencyToken to value read in OnGetAsync
_context.Entry(departmentToUpdate).Property(
d => d.ConcurrencyToken).OriginalValue = Department.ConcurrencyToken;
if (await TryUpdateModelAsync <Department>(
departmentToUpdate,
"Department",
s => s.Name, s => s.StartDate, s => s.Budget, s => s.InstructorID))
{
try
{
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
catch (DbUpdateConcurrencyException ex)
{
var exceptionEntry = ex.Entries.Single();
var clientValues = (Department)exceptionEntry.Entity;
var databaseEntry = exceptionEntry.GetDatabaseValues();
if (databaseEntry == null)
{
ModelState.AddModelError(string.Empty, "Unable to save. " +
"The department was deleted by another user.");
return(Page());
}
var dbValues = (Department)databaseEntry.ToObject();
await SetDbErrorMessage(dbValues, clientValues, _context);
// Save the current ConcurrencyToken so next postback
// matches unless an new concurrency issue happens.
Department.ConcurrencyToken = (byte[])dbValues.ConcurrencyToken;
// Clear the model error for the next postback.
ModelState.Remove($"{nameof(Department)}.{nameof(Department.ConcurrencyToken)}");
}
}
InstructorNameSL = new SelectList(_context.Instructors,
"ID", "FullName", departmentToUpdate.InstructorID);
return(Page());
}
