entity framework insert

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

Today in Boy's (stingy God) blog to see a wonderful article Astoria to the SQLite to the Entity Framework to build your ORM concept. The article said a lot of wonderful content, from SQLite for Ado.net 2.0 Da Ta Provider to the Entity Framework EF, as well as the ORM concept, lists the complete ORM view: The four dire

Entity Framework: A solid frame that looks at the name to know about the model data. This is an ORM tool introduced by Ms. Comparison with NHibernate 1) Entity Framework package better, add, delete, change, query more convenient 2) The Entity

Tags: Post enter menu data form data delete IMA ever arc1. Create an Existing Database CREATE TABLE [dbo].[Blogs] ( [BlogId] INT IDENTITY(1,1) not NULL, [Name] NVARCHAR( $)NULL, [URL] NVARCHAR( $)NULL, CONSTRAINT [pk_dbo. Blogs] PRIMARY KEY CLUSTERED([BlogId] ASC) ); CREATE TABLE [dbo].[Posts] ( [PostID] INT IDENTITY(1,1) not NULL, [Title] NVARCHAR( $)NULL, [Content] NTEXT NULL, [BlogId] INT not NULL, CONSTRAINT [pk_dbo. Posts] PRIMARY KEY CLUSTERE

Park friend Leibniz wrote a "Entity Framework data Insert Performance Tracking" article, I feel good, at least he raised the question, wrote out, aroused everyone's discussion, this is an atmosphere. After reading the article + comments, so I also wrote a simple program to try.First, the code:Two simple classes: 1:// 2:// consumer 3:// 4:

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

Learning the Entity Framework technology during the review of excellent articles, for the sake of convenient access later, reproduced to the blog, can read the original: http://blog.csdn.net/bitfan/article/details/12779517The Microsoft platform has been written for a few years, with the continuous evolution of Microsoft Data access technology, I have used the ODBC, DAO, ADO, ADO, LINQ to SQL,

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

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 framework. This article describes the use of enumerations through complex types (Complex Types) in Ado.net Entity Framework 4. This met

Navigation properties can be used to add data in the Entity Framework.When two tables have a primary foreign key relationship, and the data added to both tables is data that does not exist, you can use the navigation properties to insert the data. For example, the following two tables:When you add new data to two tables, you can add two data to the datasheet by writing it this way. private void Form1

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