Junior From PDF EF Core Entity Framework Core

What is lazy loading?

Q: What is lazy loading?

Short answer: How to enable lazy loading in EF Core? What are proxies? Lazy loading delays the loading of related data until it's accessed for the first time. EF Core requires proxies for lazy loading: Install NuGet: Microsoft.EntityFrameworkCore.Proxies Enable in OnConfiguring or AddDbContext: options.UseLazyLoadingProxies(); Mark navigation properties as virtual: public virtual ICollection Posts { get; set; } EF creates… Explain a bit more runtime proxies to override navigation properties and load them when accessed. Real-world example (ShopNest) Loading orders with items uses .Include(o => o.Items) . Without Include, listing 50 orders can trigger 50 extra queries (N+1). Say this in the interview Define — one clear sentence (the short answer above). Example — relate it to a project like ShopNest or your real work. Trade-off — when you would not use it.

Short answer: How to enable lazy loading in EF Core? What are proxies? Lazy loading delays the loading of related data until it's accessed for the first time. EF Core requires proxies for lazy loading: Install NuGet: Microsoft.EntityFrameworkCore.Proxies Enable in OnConfiguring or AddDbContext: options.UseLazyLoadingProxies(); Mark navigation properties as virtual: public virtual ICollection<Post> Posts { get; set; } EF creates…

Explain a bit more

runtime proxies to override navigation properties and load them when accessed.

Real-world example (ShopNest)

Loading orders with items uses .Include(o => o.Items). Without Include, listing 50 orders can trigger 50 extra queries (N+1).

Say this in the interview

Define — one clear sentence (the short answer above).
Example — relate it to a project like ShopNest or your real work.
Trade-off — when you would not use it.

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