Book Image

Entity Framework Tutorial

By : Joydip Kanjilal
Book Image

Entity Framework Tutorial

By: Joydip Kanjilal

Overview of this book

<p>The ADO.NET Entity Framework is a new way to build the data access layer of your Windows or web applications. It's an Object Relational Mapping (ORM) technology that makes it easy to tie together the data in your database with the objects in your applications, by abstracting the object model of an application from its relational or logical model.<br /><br />This clear and concise book gets you started with the Entity Framework and carefully gives you the skills to speed up your application development by constructing a better data access layer. It shows you how to get the most from the ADO.NET Entity Framework to perform CRUD operations with complex data in your applications.<br /><br />This tutorial starts out with the basics of the Entity Framework, showing plenty of examples to get you started using it in your own code. You will learn how to create an Entity Data Model, and then take this further with Entity types. You will also learn about the Entity Client data provider, learn how to create statements in Entity SQL, and get to grips with ADO.NET Data Services, also known as Project Astoria.</p>
Table of Contents (13 chapters)
Entity Framework Tutorial
Credits
About the Author
About the Reviewer
Preface

Understanding the System.Services.Data Namespace


The System.Services.Data namespace is the core library for ADO.NET Data Services and provides access to it. In this section, we will take a look at the classes, interfaces, and enumerations in the System.Services.Data namespace. The following table lists the names and purposes of some of the important classes in the System.Services.Data namespace:

Class

Purpose

DataService<T>

This is the main entry point for developing a data service. This class serves as the base class for all data service classes.

DataServiceHost

This class is derived from WebServiceHost class and is used to instantiate a data service.

DataServiceHostFactory

This class is used to connect to Windows Communication Foundation from within a ADO.NET Data Service framework.

DataServiceException

This exception is thrown when there is an error accessing a data service from a client application.

The following table lists the names and purposes of the interfaces...