dotnet falcon

Blogging about .NET and software development - from my bird's eye view

Teaching

Implementing the IFormatter interface

Implementing the IFormatter interface

Akos Nagy
Feb 28, 2019
One of the courses I teach is the standard Microsoft 70-483 exam preparation course. For some reason, the exam still has questions about how the BinaryFormatter and SoapFormatter components work (I'm not even going to try to guess why), so the training material also discusses the related concepts
Awesome Northwind

Awesome Northwind

Akos Nagy
Feb 5, 2019
Whenever I give a talk at a meetup or teach at a course or just want to try a demo about a data driven technology, my biggest problem (and the biggest nag) is always to get some real(istic) sample data. Thankfully there are sample databases available on the internet
Memento design pattern done (almost) right

Memento design pattern done (almost) right

Akos Nagy
Nov 13, 2018
I regularly teach courses on basic object-oriented design patterns. Over the years I have come to realize that not every pattern is equally useful or equally well-thought out. One of the most common examples of patterns that have become more like anti-patterns over the years is the Singleton pattern. But
Deserialize into interface

Deserialize into interface

Akos Nagy
Jun 12, 2018
Not long ago I was teaching a Programming in C# exam prep course. One of the modules involved serialization and a student asked me a question that was quite intriguing: Given the serialized form of an object, is it possible to deserialize it into an object if we only have
Adding bytes in C#

Adding bytes in C#

Akos Nagy
Nov 20, 2017
What happens if you run this little piece of code? More specifically, what's the type of the variable 'x'? byte b1=1; byte b2=1; var x=b1+b2; Console.WriteLine(x.GetType()); Well, if you guessed byte, you were wrong. This will actually result in
Danger zone: true, false or...

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&
Back to the basics: Overload resolution in C#

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)