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This article introduces the relevant knowledge of "ADO.NET Entity Framework example Analysis". In the operation of actual cases, many people will encounter such a dilemma. Then let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Linq To SQL frees programmers from writing a large number of sql query statements, values and assignments in the past, and does a lot of work on intellisense and compilation, so that these queries can be checked at compilation time. At the same time, Microsoft launched ADO.NET Entity Framework, the next generation of ADO.NET. It is a more powerful ORM than Linq To SQL, allowing developers to focus only on the development of domain object models, regardless of how they interact with relational databases.

This article uses a simple example to show how Entity Framework is used. Before that, you must download ADO.NET Entity Framework runtime and tools, and official downloads have been provided with many examples. Here's the official start of the ADO.NET Entity Framework journey (development tool VS 2008 beta, take the Northiwind database as an example).

First create a Console project (to select .NET Framework 3.5), then click Add New Item to see the ADO.NET Entity Data Model option:

Then there will be Wizard, select database, select tables, views, stored procedures, etc., and follow the wizard step by step, where only Customers and Orders tables are selected. Click Northwind.edmx in the Solution Explore view to see the information about Entity (which looks a lot like Linq To SQL's dbml design view), and then rename them Customer and Order.

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