public async Task Delete(int?id)
{
_context.Remove(await _context.Supervisors.FirstOrDefaultAsync(s => s.SupervisorId == id));
await _context.SaveChangesAsync();
}
public async Task Delete(int?id)
{
_context.Remove(await _context.Employees.FirstOrDefaultAsync(e => e.EmployeeNumber == id));
await _context.SaveChangesAsync();
}