Entity Framework Core 2.1 – what’s new?
summary
EF Core 2.1 is a preview that demonstrates concrete changes: data seeding in migrations that generates INSERT/UPDATE/DELETE and stores a model snapshot that’s source-control friendly; lazy loading proxies via Microsoft.EntityFrameworkCore.Proxies (Castle dynamic proxies) or manual ILazyLoader injection, with demoed SQL logging; constructor injection and parameterized constructors for required properties; extensible value conversions (enums, timespan, encryption). Group‑by translation remains flaky in preview (wrong SQL and client evaluation still possible), so complex aggregations can fail or produce many queries.
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chapters (9)
- 0:00Intro
- 1:17Difference between EF 6 and EF Core
- 5:14New Features in EF Core 2.1
- 5:49Data seeding
- 12:51Lazy loading
- 24:02Entities with constructor parameters
- 29:00Value conversions
- 33:29GROUP BY translation
- 41:24Is it ready yet?
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