آموزش انتیتی فریمورک 4 - DbContext Data Access

Introduction 00:14 Objectives 00:40 Comparing EF 4.1 Classes to EF 4 02:13 Adding, Attaching and Removing Entities 04:17 DbContext.Find 02:37 Accessing In-Memory Objects 04:58 Proxies, Change Tracking and Lazy Loading 06:39 Automatically Detecting Object Changes 01:15 Getting the ObjectContext from DbContext 01:23 Using Change Tracker to Affect Entities 09:44 Handling Optimistic Concurrency 03:10 dbcontext and Database/Model First EDMX Files 03:18 Summary 00:35 DbContext Blog Series from Entity Framework Team 00:21 Resources 00:14 Entity Framework 4.1 Code First Database Initialization 00:39:56 Introduction 00:16 Objectives 00:37 Avoding confusion with EF Version Numbers 00:57 Understanding How Code First Find and Connects to a Database 01:41 Specifying Database Name 01:27 Breaking down database initialization 01:37 Built in Database Initializers 02:25 Specifying a Database Initializer 05:27 Pre-populating a database with seed data 06:27 Using connection strings for new or existing databases 07:39 Turning off database initialization 08:52 Taking a quick look at System.Data.Entity Database 01:38 Summary 00:39 Resources 00:14