dotnet falcon (Page 8)

Analyzing Entity Framework Code First default conventions

Nov 7, 2017

In my previous post I told the tale of how I used a wrong (but still awesome) tool to solve a problem. The problem was that I had not known the default conventions when using Entity Framework Code First. To remedy this problem, I decided to take a look at

Stackoverflow Adventures: If all you have is a hammer...

Akos Nagy

Nov 5, 2017

... you see everything as a nail. I'm usually not the one to cite clichés, but for this one I make an exception. It is very, very true, especially in the software engineering business. If all you know is foreach, you don't use SelectMany. If you only

Danger zone: true, false or...

Akos Nagy

Nov 1, 2017

As an MCT I regularly teach courses of different levels. And I have to say, I love teaching — that's the most efficient way to learn :) A participant at one of my advanced courses brought me this little 'problem' (of course, this is not a 'real&

Stackoverflow adventures: Dependency injection on the loose

Akos Nagy

Oct 24, 2017

Sometimes I do these posts where I describe an interesting question on SO. And sometimes I do posts about dependency injection and dependency injection containers. Well, this time, these two series cross-over (the Avengers of blog posts :) ). So Autofac has a number of nice features described as implicit relationship types.

Back to the basics: Overload resolution in C#

Akos Nagy

Oct 21, 2017

During one of my courses, and interesting question came up. Let's say you have a class definition like this: public class Test<T> { public void Method(T parameter) {} public void Method(int parameter) {} } // ... // Test<int> object = new Test<int>(); // object.Method(7)

C#
Teaching

Dependency injection on the loose: Automated injection of method parameters

Akos Nagy

Oct 16, 2017

Yes, you've read it right: in this post I will show you how to inject arguments to method calls and create something like a 'method call' scope. It's not perfect and there are a lot of things that still need to be considered more

Chain of responsiblity and dependency injection

Akos Nagy

Oct 2, 2017

I teach courses about general OO design. One of the classes involves going through all the GoF design patterns. For the last couple of years, I have a new appreciation for the Chain of responsiblity pattern. As I see it, every middleware based arhitecture is kinda-sorta a Chain of responsiblity,

StackOverflow adventures: Checking key equality with generic primary keys in Entity Framework

Akos Nagy

Sep 22, 2017

You might have come across a design like this: you are using Entity Framework Code First, you have a base class that defines the primary key of the entities, and to have a more generic design, the PK is generic. Something like this: public abstract class EntityBase<TKey>

StackOverflow adventures: Don't create non-clustered index for foreign keys with Entity Framework Code First

Akos Nagy

Sep 20, 2017

I found an interesting question on stackoverflow: https://stackoverflow.com/questions/46212828/ef6-preventing-not-to-create-index-on-foreign-key OP wanted to find a way to disable index creation for foreign keys. I don't believe there is an easy way to do this; my mind turned right to custom SQL generators and scaffolders. Using

StackOverflow adventures: Specifying default sort order in EF using query interceptors

Akos Nagy

Sep 17, 2017

During the summer weeks, I was a little less active on stackoverflow. But now that the weather is becoming less and less friendly, I've reactivated myself and come across this question: https://stackoverflow.com/questions/45999489/entity-framework-interceptor-default-sorting/46001440#46001440 So basically, OP wanted to find a way to