// or not to use DetailAuthorViewModel, just prop: Title, Description, ImageUrl, ...
public IActionResult OnGet(int id)
{
DetailAuthorViewModel authorDetails = null;
using (this.Context)
{
authorDetails = this.Context.Authors
.Include(a => a.Books)
.Where(a => a.Id == id)
.Select(a => new DetailAuthorViewModel
{
Name = a.Name,
Id = a.Id,
Books = a.Books
}).FirstOrDefault();
}
if (authorDetails == null)
{
return(NotFound());
}
this.AuthorDetails = authorDetails;
return(this.Page());
}
public DetailAuthorPage()
{
InitializeComponent();
BindingContext = viewModel = new DetailAuthorViewModel();
}