The null-forgiving operator is the postfix ! in C#. Writing a value such as null! suppresses a compiler nullability warning by asserting that the value will be assigned later. It changes no runtime behavior: it is effectively “null for now, but don’t worry about it.” section 8.2
EF Core DbSet initialization
EF Core populates DbSet properties, but the compiler cannot recognize that initialization path. Declare the property as `public DbSet<Comic> Comics { get; set; } = null!;` to silence the warning while leaving runtime assignment to EF Core. section 8.2
Listing 8.3 ComicDbContext class with no specified database
using Microsoft.EntityFrameworkCore;
namespace XkcdComicFinder;
public class ComicDbContext : DbContext
{
public DbSet<Comic> Comics { get; set; } = null!; #1
public ComicDbContext(DbContextOptions options) : #2
base(options) { }
}
Inspect the complete ComicDbContext declaration, including the null-forgiving DbSet property and injected DbContextOptions. section 8.2
