public async Task <IActionResult> OnGetAsync(int?id)
{
if (id == null)
{
return(NotFound());
}
Author = await _context.Author
.Include(a => a.Customer).FirstOrDefaultAsync(m => m.Id == id);
if (Author == null)
{
return(NotFound());
}
ViewData["CustomerID"] = new SelectList(_context.Set <Customer>(), "Id", "Id");
return(Page());
}
public IActionResult OnGet()
{
ViewData["CustomerID"] = new SelectList(_context.Set <Customer>(), "Id", "Id");
return(Page());
}