How to implement guide with using entity framework core 7 in asp.net core 6 for lazy loading entities
I'm sure I'm missing something obvious here, but I'm trying to implement lazy loading with Entity Framework Core 7 in my ASP.NET Core 6 application, but I keep running into issues when accessing related entities. I have a parent entity `Blog` and a related entity `Post`. Here’s how my classes are defined: ```csharp public class Blog { public int BlogId { get; set; } public string Name { get; set; } public virtual ICollection<Post> Posts { get; set; } } public class Post { public int PostId { get; set; } public string Title { get; set; } public int BlogId { get; set; } public virtual Blog Blog { get; set; } } ``` In my `DbContext`, I’m configuring lazy loading like this: ```csharp public class BloggingContext : DbContext { public DbSet<Blog> Blogs { get; set; } public DbSet<Post> Posts { get; set; } protected override void OnModelCreating(ModelBuilder modelBuilder) { modelBuilder.Entity<Blog>().HasMany(b => b.Posts).WithOne(p => p.Blog); } protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) { optionsBuilder.UseLazyLoadingProxies().UseSqlServer("YourConnectionString"); } } ``` I’ve made sure to install the `Microsoft.EntityFrameworkCore.Proxies` package and call `UseLazyLoadingProxies()` in `OnConfiguring`. However, when I try to access `Posts` from a `Blog` instance, I get the following behavior: ``` InvalidOperationException: The navigation property 'Posts' want to be lazy-loaded because the 'Blog' entity type does not have a private or internal setter. ``` I’ve double-checked the accessibility of my navigation properties, and they're all set to `virtual`. I also tried adding private setters to the navigation properties, but it didn’t solve the scenario. My attempt to directly load posts using `Include` works fine, but I'm particularly interested in solving this lazy loading scenario for a more streamlined data access pattern. Any insights on what might be the question here or any missed configurations would be greatly appreciated. Has anyone else encountered this?