entity framework example

[Entity Framework series] Overview, entityoverview This article describes the history of the EF version, and describes the background and history of a technology. It helps us with the following: To put it bluntly, let's start with the question: EF (or EF 3.5) initial release . NET 3.5 SP1 Visual Studio 2008 SP1 Basic O/RM support using the Database First workflow

Today, I saw a wonderful article on the boy's blog.ArticleAstoria to SQLite to Entity Framework to build your ORM concept. the article tells a lot of wonderful content, from SQLite for ADO. NET 2.0 data provider to the Entity Framework EF, as well as the concept of ORM, lists the complete views of ORM: This articl

Unity's Entity-component-system is very beautiful and very flexible. Many articles also promote the development model of this component entity. Because it fits into one rule: use combinations rather than inheritance.But the actual development process, limited to my personal ability, to achieve an equally beautiful component-based MMO framework is a very difficult

Create an ASP. NET Core MVC application (3)-Create a MySQL database table based on entity Framework Core (Code first) create a data model class (Poco Class)Under the Models folder, add a user class:namespace myfirstapp.models{public class User {public int ID {get; set;} public string Name {get; set; } public string Email {get; set; } public string Bio {get; set; } }} 1 2 3 4 5

Introduction of Entity Framework learning 2--objectcontext, ObjectQuery, ObjectStateEntry and Objectstatemanager classes This section briefly introduces the more important classes of ObjectContext, ObjectQuery, ObjectStateEntry, and Objectstatemanager in the EF. They are all located under the System.Data.Objects namespace under System.Data.Entity.dll. In subsequent chapters, we often use some of their meth

Directory 1 Concept 1 2 ado.net Entity Framework 2 2.1 Architecture 2 2.2 Description 2 2.3 EntityConnection 4 2.4 EntityCommand 5 2.5 data access through the EntityDataReader method 6 2.6 Data access via ObjectContext return objectquery Concept LINQ to Entities A LINQ technology that enables developers to create flexible, strongly typed queries against the

Install Entity Framework (EF basics Series 4), entityefEntity Framework 5.0 APIs are distributed in two places: NuGet and. NET Framework, this. NET framework 4.0/4.5 contains the core API of EF, but the EntityFramework obtained through the NuGet package. dll contains special

(). GetmapperNew Defaultmapconfig ()34. Ignoremembers35. Nullsubstitution36. Convertusing37. Postprocess38);Dest DST = mapper1. MAP (SRC);40Assert.isnull (DST. A);Assert.areequalAssert.areequalAssert.areequal Custom Mapping Configurator Of course emitmapper is a very flexible framework, and you can customize the mapping configurator for custom mapping operations. A custom mapping configurator can inherit from Defaultmapconfig or Custom

Tags: ORM Entity Framework Database FirstAs we all know, since the 4.x version, the Entity framework began to support the database first, model three generation mode, in the previous blog, we learned about the code There is also a pattern called codeonly, which, in comparison, is a more advanced technology, and we just