Entity Framework Core 2.1: What's New Playbook

By Julie Lerman
The 2.1 update to EF Core brings over 500 changes since EF Core 2.0. In this course, you’ll learn how to take full advantage of the most impactful new features like view mapping, server-side GroupBy processing, seeding and more.
Play course overview
Course info
Rating
(49)
Level
Intermediate
Updated
Oct 9, 2018
Duration
3h 22m
Table of contents
Course Overview
Course Overview 2m
Setting the Stage for the EF Core 2.1 Release
Introduction and Overview 1m Understanding EF Core Version Numbers 2m Relating the EF Core Vision with EF6 Parity 2m Setting Expectations for This Course 3m
Seeding the Database and In-Memory Test Provider
Introduction and Overview 2m Introducing a New Way to Seed Data 2m Seeding Your First Row of Data 4m Understanding How HasData Treats Key Values 3m Seeding Related Data 3m Seeding with Anonymous Types When Properties Aren’t Exposed 3m Seeding Types with Client-generated Values 3m Using Anonymous Types to Solve Some More Seeding Problems 4m Seeding InMemory Test Databases at Runtime 5m Review and Resources 2m
Exerting More Control Over Saving with System Transactions
Introduction and Overview 1m Understanding Transactions in EF Core 4m Looking at the Starting Point Solution 2m Observing EF Core’s Existing Transaction Behavior 5m Simplifying the Customized Transaction with TransactionScope 5m Review and Resources 2m
Tapping into the Pipeline with New Tracking Events
Introduction and Overview 1m Introducing the Tracked and StateChanged Events 2m Creating Tracked and StateChanged EventHandlers in the DbContext 2m Looking at the Starting Point Solution 1m Watching the Event Handlers in Action 4m Exploring Some More Event Behavior 2m Tying the Events to Specific DbContext Instances 3m Relaying Events with the .NET Core ILoggerFactory 5m Review and Resources 2m
Lazy Loading With and Without Proxies
Introduction and Overview 2m The Return of Lazy Loading 1m Technical Setup 1m Examining the Starting Point of Our Project 3m Implementing Lazy Loading with Proxies 5m Watching the Lazy Loading in the SQL Logs 2m Making Owned Entity Properties Virtual When Using Lazy Loading Proxies 2m Noting Important Details About Lazy Loading Proxies 3m Avoiding Lazy Loading and Proxies in UWP, Xamarin, & Web Apps 2m Why You May Want to Use Proxyless Lazy Loading 3m Implementing Lazy Loading without Proxies 3m Enabling Lazy Loading in Entities without Proxies or References to EF Core 2m Review and Resources 2m
Mapping More .NET Types and Enums with Value Conversions
Introduction and Overview 1m Why Value Conversions? 3m Using the Built-in Value Converters 5m Storing Enums as Strings 3m Converting Types on the Fly 2m Creating Your Own ValueConverters 3m Review and Resources 2m
Transferring the GroupBy Effort to the Server
Introduction and Overview 2m Looking at the Starting Point Solution 2m Looking at Simple GroupBy and the SQL Generated by EF Core 2.0 and 2.1 5m Checking Out Some More GroupBy Patterns 5m Being Aware of Currently Unsupported GroupBy Patterns 5m Review and Resources 2m
Introducing Query Types for More Flexible Data Models
Introduction and Overview 1m Enabling New Patterns with Query Types 3m Looking at the Starting Point Solution 2m Mapping to Database Views 5m Handling Unconventional Query Mappings 3m Defining Queries in the Data Model 3m Pre-defining Raw SQL Queries 3m Capturing FromSql Results 3m Review and Resources 2m
Benefiting from Minor Changes with Major Impact
Introduction and Overview 1m Introducing a Minimum for Batched Commands 4m Noting a Change to Column Ordering 2m Simplifying Access to the EF Core CLI 3m Getting Compiler Warnings on Risky SQL with a Built-in Code Analyzer 7m Materializing Entities with Class Constructors That Actually Have Parameters 8m Review and Resources 4m
Description
Course info
Rating
(49)
Level
Intermediate
Updated
Oct 9, 2018
Duration
3h 22m
Description

Every application uses data, and a thorough knowledge of Entity Framework Core is key to building successful .NET and .NET Core applications. In this course, Entity Framework Core 2.1: What's New Playbook, you’ll learn how to take full advantage of the most impactful features added to EF Core 2 in this update. First, you’ll learn how to use some returning features that work quite differently than they did in EF6, for example, data seeding, lazy loading and GroupBy queries. Next, you’ll explore some completely new features such as view mapping, change tracking event handlers, and type conversions. Finally, you’ll discover some of the small changes that can have a big impact on your code. When you’re finished with this course, you’ll have a deep knowledge of these important features in EF Core 2.1, enhancing your capability to create efficient and intelligent data access logic in your software.

About the author
Julie Lerman
About the author

Julie Lerman is a Microsoft MVP, .NET mentor and consultant who lives in the hills of Vermont. You can find Julie presenting on data access and other Microsoft .NET topics at user groups and conferences around the world. Julie is the author of the highly acclaimed "Programming Entity Framework (with a second edition coming soon) and authors the MSDN Magazine Data Points column.

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Section Introduction Transcripts
Section Introduction Transcripts

Course Overview
Welcome to Pluralsight. My name is Julie Lerman, and you might know me as one of the most recognized authorities in the world on Entity Framework, Microsoft's data access platform for. NET. I'm so happy to be able to share with you the latest update to EF Core Version 2. 1. Although it's a minor update, it contains over 500 changes since EF Core 2. 0 was released. But it's not just bug fixes. This update includes some major new features and so many improvements, and that's what this course will focus on. Some of the topics that we'll cover include the return of lazy loading with new options to make it more lightweight, a new way to create C data in your data store, value converters to help you solve data-type mapping problems, and a completely new way to map database views and other read-only data. By the end of this course, you'll have a deep understanding of how to implement these and some notable features. I worked hard to discover the limitations and nuances so you'll have the knowledge you'll need to avoid, or at least solve, problems you might encounter. You'll also learn about some smaller features that I've found to be really useful. Before beginning the course, you should be familiar with Entity Framework Core 2. I recommend watching the EF Core 2 Getting Started course, as well as the EF Core 3 Mappings course. I hope you'll join me on this journey to learn how to really benefit from this very rich update with the Entity Framework Core 2. 1 What's New Playbook, at Pluralsight.

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