index.md

layout	default
day	10th
month	April
year	2020

Welcome!

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This is a blog about software development, Entity Framework, .NET Core, C#, and random other things. I'm Arthur and I'm the Engineering Manager for Entity Framework at Microsoft. However, this is my personal blog, and the opinions expressed here are my own.

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Recent Posts

Hacking my Sixth Form College network in 1991

Back in 1991 I was a student at Franklin Sixth Form College in Grimsby, England. (Roughly equivalent to being a junior in high school.)

The system admin challenged me to hack the school LAN.

This is what happened.

[Read more...]

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All your versions are belong to us

Totally made up conversations about choosing Entity Framework version numbers.

[Read more...]

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Moving to Linux

A few weeks ago, I decided to move from Windows to Linux as my primary development platform. These posts are about my experience.

Part 1: Background and first impressions

Part 2: My life in operating systems

Part 3: Installation and day-to-day use

Part 4: Conclusions

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Welcome to One Unicorn 2.0!

I created my first blog back in 2011. I called it One Unicorn.

It seemed like a good idea at the time... 🤷‍♂️

[Read more...]

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What's the difference between EF Core and EF6?

And which one should I use?

TL;DR:

• Use EF Core.
• Or EF6 if it works better for you.
• Or Dapper.

[Read more...]

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All Posts

Entity Framework 101

» What's the difference between EF Core and EF6, and which one should I use?

» EF6 SQL Logging

» EF6 DetectChanges

» All your versions are belong to us

EF Core

» EF Core adoption is very healthy

EF Core 5.0

» Using ToQueryString to get generated SQL

» CreateDbCommand: I'll see your string and raise you a command...

EF Core Tips

» Make sure to call Update when it is needed!

» Don't call Update when you don't need to!

EF Core 2.x

» Many-to-many relationships - Part 4: A more general abstraction

» Many-to-many relationships - Part 3: Hiding 'as ICollection'

» Many-to-many relationships - Part 2: Hiding 'as IEnumerable'

» Many-to-many relationships - Part 1: The basics

EF Core 1.x

» EF Core 1.1: Looking at your model in the debugger

» Add, Attach, Update, and Remove methods in EF Core 1.1

» Notification entities in EF Core 1.1

» So you want to write an EF Core provider...

» Implementing provider extension methods in EF Core 1.1

» Internal code in EF Core 1.1

» EF Core 1.1 metadata overview

» Implementing a provider 'Use...' method for EF Core 1.1

» EF Core Dependency Injection Internals

» Collection navigation properties and fields in EF Core 1.1

» Dependency Injection in EF Core 1.1

» EF Core 1.1 - Creating DbContext instances

» Provider Building Blocks

Software development

» Moving to Linux - Part 4: Conclusions

» Moving to Linux - Part 3: Installation and day-to-day use

» Moving to Linux - Part 2: My life in operating systems

» Moving to Linux - Part 1: Background and first impressions

» Today was a good day at work

» Why Your Feedback Is So Important

EF6 and earlier

» EF 6.1: Creating indexes with IndexAttribute

» EF 6.1: Turning on logging without recompiling

» EF6 release dates…or lack thereof

» Database initializer and Migrations Seed methods

» EF6 SQL Logging – Part 3: Interception building blocks

» EF6 SQL Logging – Part 2: Changing the content/formatting

» EF6 SQL Logging - Part 1: Simple Logging

» EF6: Nested types and more for Code First

» EF enums and spatial types on .NET 4

» EF6 Extensibility and Configuration

» Why open sourcing Entity Framework is a great move

» So you want to contribute to EF? Part 5: High-level architecture

» So you want to contribute to EF? Part 4: Developer experience

» So you want to contribute to EF? Part 3: Testing

» So you want to contribute to EF? Part 2: The code

» So you want to contribute to EF? Part 1: Introduction

» Deleting orphans with Entity Framework

» The key to AddOrUpdate

» Code First model builder versions

» Code First building blocks

» Code First Data Annotations on non-public properties

» EF5: Rejecting changes to a single property

» Secrets of DetectChanges - Part 4: Binary properties and complex types

» Secrets of DetectChanges - Part 3: Switching off automatic DetectChanges

» Secrets of DetectChanges - Part 2: When is DetectChanges called automatically?

» Secrets of DetectChanges - Part 1: What does DetectChanges do?

» Code First Migrations: Making __MigrationHistory not a system table

» Don't use Code First by mistake

» Why Entity Framework is releasing on NuGet only

» EF 4.3 Beta 1: What happened to that EdmMetadata table?

» What's the deal with mapping foreign keys using the Entity Framework?

» Should you use Entity Framework change-tracking proxies?

» Entity types supported by the Entity Framework

» Why are the DbContext T4 templates so different from the EF4 POCO templates?

» EF 4.1 Quick Tip: Add/Attach returns your entity

» Code First: Inside DbContext Initialization

» A Brief History of EF 4.1

» Code First: What is that EdmMetadata table?

» Rejecting changes to entities in EF 4.1

» Configuring Database Initializers in a config file

» A more general Queryable collection

» LazyCountCollection with better performance

» Extra-lazy collection count with EF 4.1 (Part 2)

» Extra-lazy collection count with EF 4.1 (Part 1)

Other things

» Hacking my Sixth Form College network in 1991

» Welcome to One Unicorn 2.0!

» Soft Oatmeal Cookies

» Lego Mindstorms 360° Photobot for Gear VR

» After wearing ourselves out in the real world, my daughter and I...

» Why One Unicorn?

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ASCII unicorns originally by Brice Lambson for dotnet-ef. Many thanks to Brice.