entity framework data access layer example

Http://www.cnblogs.com/sansi/archive/2012/10/18/2729337.htmlProgramming Entity Framework Second Edition translation indexYou can query the Entity Data model using various methods. You choose some methods because of your personal preferences, while others are because you can take advantage of special benefits. You've pr

Click here to go to the ABP series articles General CatalogueDDD-based Modern ASP.--ABP series 10, ABP domain layer-entityThe ABP is "ASP. Boilerplate Project (ASP. NET Template project) "for short.ABP's official website :http://www.aspnetboilerplate.comABP's Open source project on GitHub : https://github.com/aspnetboilerplate This article is provided by Shenzhen-carl translationEntity is one of the core concepts of DDD (domain driven design). A

representation of the name of the navigation property that contains the collection in the plural form. When you right-click on the entity to view his properties, you will see that the entity set name for each entity is also in the plural form. For example, the entity set na

of the navigation property that contains the collection in the plural form. When you right-click on the entity to view his properties, you will see that the entity set name for each entity is also in the plural form. For example, the entity set name for the poem

　　Using MySQL connection in vs2013 entityframework often encounters this problem: your project references the latest Entity Framework, but the version-compatible Entity Framework Data provider required for the data connection cann

1. What is a three-tier architecture?Layer-3 development divides the entire business application of the system into the presentation layer-business logic layer-data access layer, which is conducive to system development, maintenan

No Entity Framework provider with the fixed name "System. Data. SqlClient" was found for issues encountered when using Entity Framework. Make sure that the provider is registered in the "entityFramework" section of the application configuration file. The provider is not foun

/article/details/41877301 introduction of quite detailed, I would like to remind you to remember your installation directory, will be used later.Question three:To get here, I thought I could build the model smoothly, and didn't expect this problem to occurFortunately, there are people on the internet who have the same problem, that is, the http://blog.csdn.net/niewq/article/details/41877301 of the great God aboveOverall, four steps:First, the Package Manager console, the Library installer packag

used? Well-designed data can raise questions to developers. In the world of data, databases are designed for maintenance, security, efficiency, and scalability. Its data is organized in a way that can meet the needs of a good database design, to provide challenges for developers who want to access the

Label:About VS2013 link MySQL EF6 Many of the online statements are broadly consistent, but the specific process may have some problems Comprehensive longitudinal said, refining a few points: 1. Install Mysql-for-visualstudio-1.2.3.msi (required) 2. Install Mysql-connector-net-6.9.4.msi (required) 3. Install the EF Install command (install-package entityframework) using the NuGet Packages Package Manager, note: Which project is installed and automatically adds App. config under the project after

enter ..."); Console. Readline (); } Add the following code to the main method: Querycontacts (); Press F5 to run the code. When the Code reads the Readline () method, all names are listed in the console window. Press the Enter key to run the program. Now we can run a query again, but this time we can see what happened. Set a breakpoint at the end of the foreach block, that is, close the braces. Press F5 to run the code again. When the debugger r

Today, I just learned the razor of MVC and used the Entity Framework together. The following error is returned: Cs0012: the type'System. Data. Objects. dataclasses. entityobject' IsDefinedInAn assembly thatIsNot referenced. You must add a reference to assembly'System. Data. entit