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dpawlukiewicz | użytkownik

3 979,62
11 dni, 7 godzin, 4 minuty temu
5 kwietnia, 2016

As some of you might notice, I’ve not posted any new post since two weeks. There are few reasons for that including my vacations (finally) and other. But the most important one is the fact that I wanted to rest before huge programming competition. If you are not familiar with this even keep reading 🙂  Get Noticed One of the most recognizable Polish .NET developer – Maciej Aniserowicz – came up with really great and simple idea. Why not create some kind of competi...

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[EN] Hello Get Noticed! We meet again... - Forever F[r]ame

Daj się poznać 2017 834 dni, 21 godzin, 2 minuty temu dpawlukiewicz 27 rozwiń

Yet another week, yet another code tip for you folks! Today’s post is going to be short and easy but I hope that useful at the same time (at least for the C# beginners). Let’s start!  C# logical operators One of the first things we learn when starting discovering some new programming language are operators. There are plenty of them including arithmetic operators, bitwise operators and… logical operators.  In C# two most common ones are „&&” for conjunc...

CodeTip #5 - How to avoid short-circuiting evaluation in C#? - Forever F[r]ame

Sztuka programowania 847 dni, 22 godziny, 29 minut temu dpawlukiewicz 139 rozwiń

I’ve been working as software developers since July 2014 and during that time my point of view of IT industry have changed several times. Before starting my career I had absolutely no idea about this profession but even though I loved that! Why? Simply because of my friends who talked about tons of money they were earning, lots of benefits in the office including snacks, coffee, PlayStaion, alcohol and so on. That seemed awesome! Infamously, I must admit tha...

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My "professional" hierarchy of needs - Forever F[r]ame

Inne 849 dni, 21 godzin, 25 minut temu dpawlukiewicz 200 rozwiń

I’m a really big fan of Scott Hanselman and the way he manages his personal/work time. While watching his „soft” talk titled „Scaling Yourself” I was surprised when he described his way of answering some questions coming from all over the world (via email). He said that each of us has a limited number of keystrokes until we die so, it’s such a waste to write a dedicated email with long answer and examples in the code. Why? Because we could optimize that process and share our knowledge with other folks ou...

When to use Include() with Entity Framework? - Forever F[r]ame

Web 862 dni, 10 godzin, 31 minut temu dpawlukiewicz 160 rozwiń

This is one of those "I had to explain this couple times already so next time I want something I can redirect people to" kind of post. What I want to write about is difference in behavior between using new() and DbSet.Create() for instantiating new entities.

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[EN] Entity Framework - new() vs DbSet.Create()

Inne 868 dni, 21 godzin, 56 minut temu tpeczek 205 rozwiń

Sometimes it happens that knowing well some tool we suddenly discover an option that seems completely „exotic” but when we sh...

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CodeTip #4 Debugging with conditions & actions in Visual Studio - Forever F[r]ame

Narzędzia 868 dni, 21 godzin, 56 minut temu dpawlukiewicz 75 rozwiń

Przy okazji konferencji PolCaster 2016 (na której byłem w zeszłym roku) usłyszałem dość interesującą informację, a mianowicie: statystycznie podcast kończy się po 7/8 odcinku. Później następuje wypalenie, lub brak pomysłów i bum…koniec. O ironio mój podcast również przez chwile mógł wydać się kolejnym kandydatem do zamknięcia, ale tak jak zapowiadałem w podsumowaniu roku… POWRÓCIŁ! Nie będę się tu zagłębiał i rozpisywał nad przyczynami tak sporej przerwy (bo trwa ona on września), ale z tego miejsca wszy...

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DevReview #9 O LINQ z Rafałem Hryniewskim - Forever F[r]ame

Inne 873 dni, 20 godzin, 14 minut temu dpawlukiewicz 120 rozwiń

Aggregate is one of the most fun and powerful methods in LINQ. Sadly it's also of of the most underused and "scary" ones. I hope that after reading this post you will understand Aggregate a bit more, know when to use it and won't be afraid of doing so.

Tagi: aggregate, Linq
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Hryniewski.NET | LINQ - don't be afraid of Aggregate

Sztuka programowania 889 dni, 7 godzin, 49 minut temu Rafał Hryniewski 254 rozwiń

Nowadays, asynchronous programming isn’t something unusual. We all know that when it comes to do some I/O operations or HTTP request, we should do it async. Why? There’re several reasons but two most important  are:Efficiency. In many cases, the code might work faster. That’s because it’s not forced to wait for the result. Instead, it can work on some other stuff and then come back for the response when it’s ready. Simple is that.Comfort. Async improves the comfort of using our applications. We don’t blo...

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What lies beneath async/await in C# ? - Forever F[r]ame

Sztuka programowania 887 dni, 1 godzinę, 29 minut temu dpawlukiewicz 320 rozwiń

Hi folks, it’s me again! Well, I was kind of inactive for a while and to be honest, I did it for a purpose. 2016 was an absolutely crazy year for me, full of new challenges, projects and personal changes (hope that most of them were those positive). Therefore, at the end of December, I decided to take a short break and flush my thoughts related to the blog, podcast and… programming. But don’t be nervous, I’m not gonna give it up! Anyway, I guess that with the new year it’s finally time to do some summar...

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My thoughts about 2016 - Forever F[r]ame

Inne 897 dni, 23 godziny, 51 minut temu dpawlukiewicz 28 rozwiń

Niektórzy w tej chwili lepią pierogi, próbują nie wrócić do domu z pangą, latają za zapomnianym prezentem niczym Arnold za Turbo-Manem lub w ciepłym, przytulnym domku wieszają na choince bombki. Ja z kolei mam cały dzień dla siebie i jego część postanowiłem na napisanie krótkiego posta o tym jak możecie wykorzystać enumy jako flagi i obwiesić nimi swoje obiekty tak bardzo jak tylko chcecie, a żeby zachować choć pozory świątecznej atmosfery zrobię to z małym świątecznym akcentem (takim tycim).

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Hryniewski.NET | Enumy jako flagi i wykorzystanie operatorów bitowych (XMASS Edition)

Sztuka programowania 904 dni, 9 godzin, 20 minut temu Rafał Hryniewski 214 rozwiń

Often developers as a log store use text files, system events, output console or database. In some cases they use distributed systems such Splunk or Elasticsearch. In this article I would like to present how to store logs in the form of objects, rather than plain text, which also offers all sorts of graphs and charts called dashboards.

Log data using Serilog, Elasticsearch and Kibana |

Sztuka programowania 911 dni, 10 godzin, 7 minut temu Mateusz Pustelak 176 rozwiń

One thing that surprised me the most about the C# was the fact that it does not support multiple inheritances (which I knew from the C++). How can we deal with that? Of course, we use interfaces, since one class can implement more than one. But quickly we come to the very common problem...

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Using C# explicit interface implementation for hiding... - Forever F[r]ame

Sztuka programowania 916 dni, 8 godzin, 49 minut temu dpawlukiewicz 186 rozwiń

Sometimes it happens that we use mechanisms/features of specific language without beeing aware of it. That’s fine, but if you’ll want to discuss your code in a future to the audience or coworkers, soon or later you’ll be forced to learn it and understand (or at least name it using technical nomenclature). Therefore, today I’m going to discuss two related „mechanisms” of C# which are covariance and contravariance.  Covariance Covariance is a type conversion from the specific type to the more general (ba...

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What are covariance and contravariance in C#? - Forever F[r]ame

Sztuka programowania 921 dni, 23 godziny, 39 minut temu dpawlukiewicz 185 rozwiń

In today’s post, we are going to explore another feature of the Aurelia framework or more precisely aurelia-fetch-client. So, in many cases, it would be nice to perform some specific actions when doing an AJAX request. For instance, before sending a request we want to log it into browser database like PouchDb. A more common example is calling a toastr on some error like 404, 500, 401. The problem with such a scenarios is that many developers duplicate their code in every single request/callback so they b...

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[EN] Using Interceptors with aurelia-fetch-client - Forever F[r]ame

Web 932 dni, 8 godzin, 51 minut temu dpawlukiewicz 31 rozwiń

I’ve been using Windows OS since I remember. I guess the first version I used was ’95. Why Windows? Well mostly because of simplicity. When I wanted to install some application, all I needed to do was to download that and run the .exe. No struggling with some weird „sudo” like commands that I didn’t understand. It just worked fine. Things changed when I went to university and discovered Debian which is a Linux distribution. My first moments with UNIX family wasn’t very enjoyable but after few days I unde...

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[EN] Mac OS X for .NET developer? - Forever F[r]ame

Inne 940 dni, 4 godziny, 26 minut temu dpawlukiewicz 119 rozwiń

When coding web applications we sometimes come to the point when we need to perform some action during user’s navigation. One of the most common examples would be authorization and checking whether the user has appropriate roles. Fortunately, Aurelia provides an access to route pipeline so it’s super easy to add some extra steps Let’s get to work!  Inspecting RouterConfiguration In order to add our custom pipeline steps, we need to create some routing for the application. I won’t describe the whole pr...

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[EN] Exploring Aurelia's route pipelines - Forever F[r]ame

Web 945 dni, 5 godzin, 24 minuty temu dpawlukiewicz 46 rozwiń

A few days ago I was playing with Entity Framework when suddenly an Exception popped out on the screen:   Additional information: LINQ to Entities does not recognize the method ‚System.String GetFullName(User)’ method and this method cannot be translated into a store expression.   That was because accidently I treated Expression

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[EN] Func vs. Expression - Forever F[r]ame

Sztuka programowania 950 dni, 6 godzin temu dpawlukiewicz 266 rozwiń

In the previous post, I presented to you the Aurelia – new, great JavaScript framework created by Rob Eisenberg. We also used its Command Line Interface (CLI) to create new Aurelia project with all its dependencies, unit tests, and HTTP server. As I announced back then, we’re going to play with CLI to generate some code inside our project. So, let’s get started!Aurelia CLI generator Okay, before our implementation, let’s find out what kind of code we can generate using Aurelia’s CLI. To do that, just ty...

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[EN] Generating view model and view using Aurelia CLI - Forever F[r]ame

Web 966 dni, 23 godziny, 19 minut temu dpawlukiewicz 42 rozwiń

As we all know, JavaScript world is one of the fastest growing. New frameworks appear and soon after die because of capabilities or outdated solutions. The example here is knockout.js (which I really loved by the way) – an excellent MVVM framework with dependency injection, two-way data binding e.t.c which was eaten by Google’s child called Angular. In the meantime React JS happened and all these great frameworks like Ember or Polymer. In early 2016, all frontend geeks waited for the new awesome framewor...

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[EN] Meet Aurelia & CLI - Forever F[r]ame

Web 965 dni, 7 godzin, 56 minut temu dpawlukiewicz 56 rozwiń

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