包含DbContext 的项目需要 NuGet 包 Microsoft.EntityFrameworkCore.SqlServer 或其他数据库提供程序(如果使用的是其他数据库) ASP.NET Core 还有需要 Microsoft.EntityFrameworkCore.Tools 包 (因为我是在Linux环境下,所以我直接使用dotnet命令行工具)然后执行命令dotnet ef migrations add MyMigrationName 执行指令dotnet ...
Part 2 Entity Framework in depth 《Entity Framework Core in Action》 -- SECOND EDITION Author: JON P SMITH 如果需要电子书的小伙伴,可以留下邮箱,看到了会发送的 8 Configuring relationships 8.2 What navigational properties do you need? 实体类之间关系的配置应该以项目的业务需求为指导。您可以在关系的...
“Great buy” Money Well Spent. December 28, 2021 byOswald U.(Lagos, Nigeria) “This book is a must-have for any .NET developer who works with EF Core. I always wanted to feel comfortable with the technologies I use at work, EF Core being one of them, and this book is taking me...
ef官方教程包括(ef6\ef core) Entity Framework (EF) Core 是轻量化、可扩展、开源和跨平台版的常用 Entity Framework 数据访问技术。 EF Core 可用作对象关系映射程序 (O/RM),以便于 .NET 开发人员能够使用 .NET 对象来处理数据库,这样就不必经常编写大部分数据访问代码了。 ef ef core Entity Framework ...
Entity Framework Сравнение EF Core и EF6 Entity Framework CoreEntity Framework 6 Обзор Новыевозможности Началоработы Основы Установка Entity Framework Работас DbContext Сведенияосвязях Асин...
Entity Framework Core in Action, Second Edition is an in-depth guide to reading and writing databases with EF Core. Revised from the bestselling original edition, it’s filled with over 100 diagrams, code snippets, and examples—including building and scaling your own bookselling web application...
下載PDF 針對Azure SQL DB,Entity Framework (EF) Core 已提供內部資料庫連線恢復功能和重試邏輯。 如果您想要使用具復原功能的 EF Core 連線,則必須為每個DbContext連線啟用 Entity Framework 執行策略。 例如,EF Core 連接層級的下列程式碼可在連接失敗時重試具有恢復...
In this project, the class is named SchoolContext.Update Data/SchoolContext.cs with the following code:C# Copy using Microsoft.EntityFrameworkCore; using ContosoUniversity.Models; namespace ContosoUniversity.Data { public class SchoolContext : DbContext { public SchoolContext (DbContextOptions<School...
EfCoreInAction Welcome to the Git repo that is associated with the bookEntity Framework Core in Actionpublished byManning Publications. This book details how to useEntity Framework Core(EF Core) to develop database access code in.NET Coreapplications. ...
Microsoft.EntityFrameworkCore Microsoft.EntityFrameworkCore AutoTransactionBehavior BackingFieldAttribute ChangeTrackerExtensions ChangeTrackingStrategy CommentAttribute ConventionEntityTypeExtensions CosmosDatabaseFacadeExtensions CosmosDbContextOptionsExtensions CosmosEntityTypeBuilderExtensions ...