public IndexModel(siemens.Data.AppDbContext context)
 {
     _context = context;
 }
 public DetailsModel(siemens.Data.AppDbContext context)
 {
     _context = context;
 }
 public DeleteModel(siemens.Data.AppDbContext context)
 {
     _context = context;
 }
 public EditModel(siemens.Data.AppDbContext context)
 {
     _context = context;
 }