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by Jiří {x2} Činčura

Nullable bool and if statement

16 May 2025 1 mins .NET, C#

I was writing some code in EF Core’s codebase and saw different way of writing condition on nullable bool.

Gopas TechEd 2025

16 May 2025 1 mins Presentations & Speaking

Příští týden se bude konat Gopas TechEd. Letos jsem připravil 3 přednášky.

Testing latency to Azure datacenters around me

5 Nov 2024 2 mins Azure, Cloud, Network

Purely out of curiosity I decided to test latencies to a few Azure datacenters around me. Specifically, Germany West Central (Frankfurt), Poland Central (Warsaw) and West Europe (Amsterdam). I wanted to test Azure DC in Austria as well, but it is not yet available.

.NET Developer Days 2024 Berlin

3 Jun 2024 1 mins Presentations & Speaking

One of my favourite conferences – .NET Developer Days – that happens in Warsaw in fall is now having also a Berlin edition. And I’m a big fan of Berliner Fernsehturm. Looks like a perfect combination (well, perfect combination would be to have the conference in Fernsehturm 😉). Anyway, I’ll have two sessions there and I hope to see you there.

MiZeroPageThread

8 May 2024 1 mins Kernel, Memory, Windows

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WUG: Async a await pěkně od podlahy (Olomouc)

30 Apr 2024 1 mins Presentations & Speaking

2.5.2024 od 17:00 na WUGu v Olomouci si popovídáme o async a await. Přednáška Async a await pěkně od podlahy má v mém reportoáru už asi 30 podob. Pokaždé když ji dělám řeknu něco jinak, někdo se zeptá na něco zajímavého atp. a ani tady to nebude jinak. Tak se přijďte podívat a udělat se mnou další podobu.

Global Azure 2024

18 Apr 2024 1 mins Presentations & Speaking

Zítra, 19. dubna, se koná globalní akce Global Azure 2024. I já přispěju trochu do mlýna s tématem Azure Spot instances as your secret weapon.

Warsaw IT Days 2024

22 Mar 2024 1 mins Presentations & Speaking

I’ll be speaking at this years Warsaw IT Days 2023. One sessions What’s new in C# 12 will be in-person in Warsaw, while other Dynamic PGO in .NET 8 and why you need to know about it is VoD.

Enumerating over Select’s index

15 Feb 2024 2 mins .NET, C#

My mind was wandering, as usual when it is not 100% occupied, and I remembered that the Select LINQ function has an overload that gives you the index into the enumeration and it uses an int. So, I thought what’s going to happen if I have longer enumeration and it goes over the range of the int?

WUG: .NET Conf 2023 – Live Stream

9 Nov 2023 1 mins Presentations & Speaking

Trhák letošního roku – .NET 8 – 14.11. v premiéře ve Zlíně s celebritami. Řečeno normálně, společné sledování keynote .NET Conf 2023 v rámci WUGu ve Zlíně, následná diskuze s experty a také neformální hospoda. Lepší úterní večer asi těžko vymyslíte (nebo nejste opravdový geek 😄). Tak doufám, že se tam uvidíme.

Mastering Entity Framework Core workshop and Techorama (NL) 2023

24 Sep 2023 2 mins Presentations & Speaking

After the Belgium version Techorama is going to Netherlands, in October 9-11.

I’ll deliver workshop called Mastering Entity Framework Core – basically in something like 8 hours I’ll try to teach you Entity Framework Core all the way into “monk” level. It will be a lot of stuff, but also lot of fun.

Besides the workshop, I’ll also have two sessions Autoincrement (identity) is not the only option for primary keys and What’s new in Entity Framework Core 7 (abstracts below).

C# class named “end”

11 Aug 2023 1 mins C#

I was today’s years old when I realized I can create class named end in C#.

Gopas TechEd 2023

21 May 2023 1 mins Presentations & Speaking

Příští týden se bude konat Gopas TechEd. Letos jsem připravil 3 přednášky.