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4 maj 2017 · I need to know how to setup a 2nd dbcontext to work with EF core that uses/creates a different database. I've tried creating a 2nd connection string but that gets me this error: System.Data.SqlClient.SqlException: 'Cannot open database "PartsDb" requested by the login.
24 sie 2023 · Zmiany są wprowadzane do śledzonych jednostek zgodnie z potrzebami w celu zaimplementowania reguły biznesowej. wywoływana jest metoda SaveChanges lub SaveChangesAsync. Platforma EF Core wykrywa wprowadzone zmiany i zapisuje je w bazie danych. Wystąpienie DbContext jest usuwane.
DbContext in dependency injection for ASP.NET Core. In many web applications, each HTTP request corresponds to a single unit-of-work. This makes tying the context lifetime to that of the request a good default for web applications. ASP.NET Core applications are configured using dependency injection. EF Core can be added to this configuration ...
11 mar 2023 · When you separate data access into multiple DbContexts, the application can reduce the risk of contention and improve concurrency, and this can improve performance. And if you're using multiple DbContexts, you can configure more granular access control to improve application security.
28 mar 2023 · Essentially, you just need to have 2 Database Context classes inheriting your primary Context (in this case, ReadOnlyApplicationDbContext and ReadWriteApplicationDbContext are inheriting ApplicationDbContext) using System; using System.Linq;
20 sie 2024 · DbContext is a central class in Entity Framework Core that manages the database connection and serves as a gateway for querying and saving instances of your entities. Key Components:...
16 lis 2020 · In this article, we look at DBContext. We also look at how to create a DBContext class in our ASP.NET Core application. Next, we will show you how to register DBContext for Dependency Injection. Later we will take a look at how to configure DBContext using DbContextOptions & DbContextOptionsBuilder.
