how to use entity framework in mvc

Let EF fly for a while: How to Use Entity Framework 6 to connect to the Sqlite database, entitysqliteObtain Sqlite 1. You can use the NuGet package to obtain it. It will also automatically download EF6. 2. Download the corresponding version on the Sqlite Official Website: http://system.data.sqlite.org/index.html/doc/t

In the previous article, we mainly introduced mvc3 and project creation. In this article, we will mainly look at the creation of the Entity Data Model in mvc3. When creating a project, we use. net 4, in. in net 4, we can use Entity Framework (

MySQL only supports default values and Automatic updates for timestamp that cannot be used for rowversion. Therefore, you can only set row Version in the app in MySQL. Non-existent disadvantages: 1.ASP. NET slow (no options for IIS application initialization and recycle configuration are set) 2.Entity Framework slow (not set per request one dbcontext and generate views) 3.

Entity Framework Tip 4-how to use notracking to query objects in the detached state? Sometimes our entities only need to be displayed without updating, so to improve performance, we do not need to beContext tracing. In this case, you can use the notracking query to obtain the object, so that the object state will be de

ADO. NET Entity Framework is a newly added function of. Net Framework v3.5 SP1. This article discusses how to use Entity Framework in N-Tier applications. As shown in, Data Access Layer (DAL), BLL (Business Logic Layer), and BFLL

Use the Entity Framework (EF) code in quick custom NopCommerce for priority migration, nopperformanceef I have seen many users in the nopCommerce forum asking them how to use Entity Framework (EF) code to migrate the code first to

Continue to explore for friends who want to use the Entity Framework. Although the content they share is not technical, it has been tested in practice. It is easy to use transactions in Entity Framework. Put operations in transa

This article is a note on the use of the AspNetPager control! For the AspNetPager control, you can view the Yang Tao homepage. This is an open custom ASP. the. NET Control supports various custom data paging methods, which are easy to use and powerful. You can use this control during website development to save a lot of unnecessary trouble. Download this page: As

Learning Materials: http://msdn.microsoft.com/zh-cn/data/jj193542 The console application created by the video. I will use MVC here. I. Very magnetic and elegant I really like watching this person's video. Although I don't know much about it, I don't know what it is. His voice is very magnetic. It makes me feel bored. Have you seen it? The code is displayed smoothly on the screen, allowing you to unders

Reprint to: http://www.cnblogs.com/jaxu/p/3655582.htmlThis article is a note for use with Aspnetpager controls!For Aspnetpager controls, you can view the Yang Tao home page. This is an open custom ASP. Web control that supports a variety of custom data paging methods, is easy to use and powerful, and can be used to save a lot of unnecessary hassle when using this control during site development.Download thi

This article will lead us into the ado.net world through the use of the enumeration in the Ado.net Entity Framework 4. An enumeration (enum) is a commonly used type, such as a parameter to represent a state, a type, and so on. But at the moment it will not be officially supported in the Ado.net Entity

easier here, no more nonsense.2. Define Mappings Public Partial class Blogusermap:entitytypeconfiguration { public blogusermap () { this. ToTable ("bloguser"); this. Haskey (c = c.id); } }View CodeDefine the mapping of entities to data tables, and a pair of one or one-to-many, many-to-many relationships between entities is also defined here.3. Define Data Service Public Interface Ibloguserservice { IList getallbloguser (); }View C

The project uses LINQ.CodeIt takes a great deal of effort to rewrite LINQ into an SQL statement and execute it in the database to get the expected results,ProgramThe LINQ code in is always unable to get the desired result, so I want to know what the SQL statement corresponding to the LINQ is, but suffer from the lack of a good tool. It takes a lot of effort to find the linqpad tool, soon I fell in love with it. It's really great. There are many questions about how to

EF is the Microsoft series to correct seedling Red's heavyweight orm framework, powerful, the operation of the database almost without writing SQL, you can write C # code like the operation of the database, especially in support of multi-table association operation is very convenient, but the resulting SQL statement performance is poor, it is not flattering. But the performance has improved after EF6.Dapper is a very mainstream lightweight sports car

; -Entities. Createobjectset {Wuyi if(p.entitykey.entitykeyvalues[0]. value.tostring () = =Guid) thet =p; - }); Wu returnT; - } About $ /// - ///Delete - /// - /// A /// + Public BOOLDelbyguid (stringGuid) the { -T t =Findbyguid (Guid); $ if(t!=NULL) the entities. DeleteObject (t); the returnSaveChanges () >0; the } the - /// in ///Update

Currently, the default setting of Entity Framework code first in appharbor may cause some problems, because EF will execute dropcreatedb by default, and appharbor has the permission to drop. Currently, the solution provided by appharbor is to use this nuget package. However, even though this package is not explicitly stated in the package, it does not actually

Entity Framework ASP. NET is an enhanced ado.net, which provides powerful mapping capabilities. It is an ORM (Object Relational Mapping) framework that enables developers to handle various relational databases, such as SQL SERVER,ORACLE,MYSQL,DB2, and provides an automated mechanism for accessing and storing data in a database. Here are 3 ways to

In the previous article, you have learned how to implement a table inheritance for each hierarchy. In this section, you will learn the advanced features that you can take advantage of when you develop an ASP. NET Web application using entity Framework Code first.In this section you will reuse the pages that you have created before, and then you need to create a new page and

In the previous article, you have learned how to implement a table inheritance for each hierarchy.In this section, you will learn the advanced features that you can take advantage of when you develop an ASP. NET Web application using entity Framework Code first.In this section you'll reuse the pages you've created before, and then you'll need to create a new page and us