[ConcurrencyCheck]publicstringStudentName {get;set; } } As you can see in the above example, ConcurrencyCheck attribute is applied to existing StudentName property of the Student class. So, Code-First will include StudentName column in update command to check for optimistic concurrency. execsp_exe...
{varobjectContext = (ctxasSystem.Data.Entity.Infrastructure.IObjectContextAdapter).ObjectContext;//use objectContext here..} Entity Framework中的Entity类型 POCO Entity (Plain Old CLR Object) 不依赖于任何Framework的类的类(also known as persistence-ignorant objects),为Entity Data Model生成CRUD命令服务。 D...
검색 제품 설명서 개발 언어 토픽 로그인 이 항목의 일부는 기계 또는 AI 번역되어 있을 수 있습니다. 경고 해제 버전 Entity Framework 6.2.0 System.Data.Entity.Migrations.Design ...
6.4.4 Concurrency Check註解 6.5 事務處理 6.5.1 共享事務處理連接 6.5.2 使用Transaction Scope 6.6 複雜類型的數據對象變更 6.7 小結 第7章 ASP.NET整合應用 7.1 Web Forms與Entity Framework 7.1.1 查詢 7.1.2 更新 7.1.3 刪除 7.1.4 處理單項數據 ...
protected override void ProcessPropertyAdded(Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionPropertyBuilder propertyBuilder, System.ComponentModel.DataAnnotations.ConcurrencyCheckAttribute attribute, System.Reflection.MemberInfo clrMember, Microsoft.EntityFrameworkCore.Metadata.Conventi...
EntityFrameworkCore.Diagnostics Microsoft.EntityFrameworkCore.Infrastructure Microsoft.EntityFrameworkCore.InMemory.Metadata.Conventions Microsoft.EntityFrameworkCore.Metadata Microsoft.EntityFrameworkCore.Metadata.Builders Microsoft.EntityFrameworkCore.Metadata.Builders CheckConstraintBuilder CollectionCollectionBuilder ...
EntityFrameworkRepository(r => { r.ExistingDbContext<JobServiceSagaDbContext>(); r.UsePostgres(); }); x.AddSagaRepository<JobTypeSaga>() .EntityFrameworkRepository(r => { r.ExistingDbContext<JobServiceSagaDbContext>(); r.UsePostgres(); }); x.AddSagaRepository<JobAttemptSaga>() .Entity...
在Entity Framework 中,您可以處理 OptimisticConcurrencyException Entity Framework 擲回的例外狀況來解決衝突。 若要得知何時應擲回這些例外狀況,Entity Framework 必須能夠偵測衝突。 因此,您必須適當的設定資料庫及資料模型。 一部分啟用衝突偵測的...
二、Entity Framework 架构 EDM (实体数据模型):EDM包括三个模型,概念模型、 映射和存储模型。 概念模型 ︰ 概念模型包含模型类和它们之间的关系。独立于数据库表的设计。 存储模型 ︰ 存储模型是数据库设计模型,包括表、 视图、 存储的过程和他们的关系和键。
In case you missed it, check out the latest EF community standup in which we share and discuss the results of the recent Entity Framework survey. The EF Core Community Standups are live-streamed about once every two weeks. This is your opportunity to interact with the EF team and others...