大多数重要的 Web 应用程序都需要对数据可靠地运行操作,如创建、读取、更新和删除 (CRUD)。 它们还需要在应用程序重启后保留这些操作所做的任何更改。 尽管有各种选项可用于在 .NET 应用程序中永久保留数据,但 Entity Framework (EF) Core 是一个用户友好型解决方案,非常适合许多 .NET 应用程序。
编写和管理用于数据访问的ADO.Net代码是一件枯燥且乏味的工作。微软提供了一个名为Entity Framework的O/RM框架,可以为你的应用程序自动化数据库相关活动。 微软将EF定义如下: 微软ADO.NET Entity Framework是一种对象/关系映射的框架,它使开发人员处理关系数据以特定领域对象的形式,消除了开发人员经常需要编写的大量数...
Entity Framework Core 歡迎! EF Core 9.0 的新功能 EF Core 9.0 的重大變更 開始使用 版本及規劃 (藍圖) 目前和已規劃的版本 發行計劃程序 EF Core 9.0 EF Core 8.0 EF Core 7.0 EF Core 6.0 不受支援 DbContext 設定與初始化 建立模型 管理資料庫結構描述 ...
EF Core 1.1.NET Standard 1.3过期时间:2019 年 6 月 27 日公告 EF Core 1.0.NET Standard 1.3过期时间:2019 年 6 月 27 日公告 有关每个 EF Core 版本支持的特定平台的信息,请参阅支持的平台。 Entity Framework Core 版本和支持与 .NET 版本和支持保持一致。 有关支持到期时间和长期支持 (LTS) 版本的...
System.InvalidOperationException: Cannot save instance of 'Order.ShippingAddress#Address' because it is an owned entity without any reference to its owner. Owned entities can only be saved as part of an aggregate also including the owner entity. at Microsoft.EntityFrameworkCore.ChangeTracking....
The Microsoft ADO.NET Entity Framework is an Object/Relational Mapping (ORM) framework that enables developers to work with relational data as domain-specific objects, eliminating the need for most of the data access plumbing code that developers usually need to write. Using the Entity Framework, ...
This is a guide to Entity Framework Extensions. Here we discuss the introduction, entity framework extensions, bulk operations, and examples. You may also have a look at the following articles to learn more – Entity Framework Core ASP.NET Core Entity Framework ...
These domains are relevant to business stakeholders and define the core business functionality of IT systems Business-supporting EA domains occupy the bottom layers of the stack and represent non-functional domains These domains are irrelevant to business stakeholders and unrelated to business functionality...
Enterprise risk management (ERM) is a framework for managing organizational risk, from ensuring employee safety and securing sensitive data to meeting statutory regulations and stopping financial fraud.
The Just-in-time (JIT) compiler in .NET Framework 4.8 is based on the JIT compiler in .NET Core 2.1. Many of the optimizations and all of the bug fixes made to the .NET Core 2.1 JIT compiler are included in the .NET Framework 4.8 JIT compiler. NGEN improvements. The runtime has ...