entity framework book

more efficiently and can handle more traffic without delay.In earlier versions of. NET, writing and testing asynchronous code was complex, error-prone, and difficult to debug. But in. Net 4.5, it's so easy to write, test, and debug asynchronous code, so you should always use asynchronous code. Asynchronous code costs less, and the impact on performance is negligible in low-traffic situations, but with high traffic, the potential performance gains are enormous.Creating a Department controllerCre

the development of this framework, mainly originated from a lot of users who use ALINQ or LINQ to SQL, often complained to me that they are really cool to use, but dynamic queries are so tangled. This framework is mainly to solve the problem of dynamic queries encountered by customers. So far, has been on and off for more than a year, writing this framework, ful

For more information about the features of Entity Framework 4, see this article. net 4 Entity Framework introduction, one of the most interesting is the support for poco: EF4 provides simple and traditional CLR object (plain old CLR object/POCO) support for entities. Your object can exist independently of EF, which bet

This section briefly introduces ObjectContext, ObjectQuery, ObjectStateEntry, Objectstatemanager, which are some of the more important classes in EF, They are located under the System.Data.Objects namespace under System.Data.Entity.dll. In subsequent chapters, we often use some of their methods in order to accomplish some of our operations or purposes. In this section, we will briefly explain the various classes of methods we may use in the future to facilitate our subsequent learning.ObjectCont

ADO. NET Entity Framework is the official ORM solution of Microsoft. Therefore, we can't help but remember the famous ORM solution in. NET Program Design-nhib.pdf from the open source. With the impressive appearance of VS2010, how will the new ADO. NET Entity Framework be presented to everyone? What problems does

Entity Framework 6 Recipes Chinese translation series (19), entityframework For the original intention of translation and why I chose Entity Framework 6 Recipes, see the beginning of this series.3-16 bitwise operations in Filtering Problem 　　You want to use bitwise operations in the filter conditions of the query. Solu

read related data for ASP.net MVC application This is the Microsoft Official tutorial Getting started with Entity Framework 6 Code The 5 Series translation, this is eighth: Update related data for ASP.net MVC application Original: Updating Related Data with the Entity Framework in a asp.net MVC application You have su

stored procedure getallpeople. Click Finish to add the stored procedure to the model.3. My environment is win10+vs2013+ef6.1.3, do not need this step, the 1th step has already completed this step, but the final "return to the following collection" must be modified), right click on the Design view of the model, select "New"? Function Import. Select Getallpeople from the stored procedure/Function Name drop-down box. In the Function Import Name text box, enter: Getallpeople. This is the name of th

In the development of the new version of the blog background of the blog garden, we have prepared the most advanced weapons to increase the pace of modernization of the garden. ASP. net mvc 3 has been installed before, and is currently experimenting with the latest new type of weapon, Entity Framework 4.1 RC, just introduced from Microsoft. Test Analysis: 1. Regression of database connection strings I

Some time ago, many articles in the garden introduced the analysis of LINQ to SQL. It can be said that it is a simple implementation of ORM, And it is Microsoft's problem of unbalanced impedance between data and objects. C #3.0 introduces some new features, such as extension method, Lambda expression, and anonymous type. In fact, these new features are used to serve LINQ. By writing a large number of SQL query statements, values, and assignments in the past, the developer has made a lot of work

Previous articlesArticleI briefly introduced the concept of Entity Framework and introduced database first and model first instances. Today we will introduce another exciting development method: codeonly! Of course, EF's support for poco (plain old CLR object) is a major feature in ef4.0. It is also a major improvement in EF scalability. This is also a simple demonstration of the operation steps! Let's brie

The Entity framework maps the entities and relationships defined in the conceptual model to the data source, using the Entity Framework to materialize the data returned by the data source as objects, to track changes made by objects, to handle concurrent processing, to propagate object changes to the data source, and s

Label:The project needs to migrate the system from the SQL Server database to Oracle. Since most of the data access operations were implemented by wrapping the unified Access portal of the Entity Framework, it was necessary to study how the Entity Framework was transferred from SQL Server to Oracle. Since ef4.x, Oracle

Introduction to Entity FrameworkReferred to as EF, and the relationship with ADOThe ADO. NET Entity Framework is an object relationship correspondence (O/R Mapping) solution developed by Microsoft based on ADO, which was earlier known as ObjectSpace and is now included in Visual Studio Servi CE Pack 1 and. NET Framework