Lerman J., Miller R. - Programming Entity Framework. DbContext [2012, PDF/EPUB, ENG]

Chapter 1 : Introducing the DbContext API

Getting the DbContext API into Your Project
Looking at Some Highlights of the DbContext API
Working with the BreakAway Model
Ensuring DbContext Instances Get Disposed

Chapter 2 : Querying with DbContext

Writing Queries with LINQ to Entities
Querying All the Data from a Set
Using LINQ for Sorting, Filtering, and More
Finding a Single Object
Querying Local Data
Loading Related Data
Querying Contents of a Collection Navigation Property

Chapter 3 : Adding, Changing, and Deleting Entities

Working with Single Entities
Working with Relationships
Working with Change Tracking
Using Snapshot Change Tracking
Enabling and Working with Change Tracking Proxies
Fetching Entities Without Change Tracking

Chapter 4 : Working with Disconnected Entities Including N-Tier Applications

A Simple Operation on a Disconnected Graph
Exploring the Challenges of N-Tier
Understanding How DbContext Responds to Setting the State of a Single Entity
Setting the State for Multiple Entities in an Entity Graph
Building a Generic Approach to Track State Locally
Tracking Individually Modified Properties

Chapter 5 : Change Tracker API

Change Tracking Information and Operations for a Single Entity
Working with the State Property
Working with Current, Original, and Database Values
Working with Individual Properties
Refreshing an Entity from the Database
Change Tracking Information and Operations for Multiple Entities
Using the Change Tracker API in Application Scenarios

Chapter 6 : Validating with the Validation API

Defining and Triggering Validation: An Overview
Validating a Single Object on Demand with GetValidationResult
Specifying Property Rules with ValidationAttribute Data Annotations
Inspecting Validation Result Details
Exploring More ValidationAttributes
Validating Individual Properties on Demand
Specifying Type-Level Validation Rules
Understanding How EF Combines Validations
Validating Multiple Objects
Validating When Saving Changes

Chapter 7 : Customizing Validations

Overriding ValidateEntity in the DbContext
Considering Different Ways to Leverage ValidateEntity
Updating Data During SaveChanges
Overriding SaveChanges When Validation Occurs
Using the IDictionary Parameter of ValidateEntity
Controlling Which Entities Are Validated in ValidateEntity

Chapter 8 : Using DbContext in Advanced Scenarios

Moving Between ObjectContext and DbContext
Leveraging SQL Server Operators Exposed in SqlFunctions
Querying Derived Types with DbSet
Understanding the Interface Property Limitation
Considering Automated Testing with DbContext
Reducing Database Hits in Testing with IDbSet
Accessing the Database Directly from DbContext
Providing Multiple Targeted Contexts in Your Application

Chapter 9 : What’s Coming Next for Entity Framework

Understanding Entity Framework’s Version Numbers
Entity Framework 5.0