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Default interface members and missing “public” in implementation

21 Sep 2022 1 mins C#

Recently I spent surprising amount of time chasing behavior that didn’t match my expectations. As you can guess the problem was between keyboard and chair. Hopefully my mistake can help you save minutes (or hours) of debugging.

WUG Days 2022 a SQL Server Bootcamp 2022

12 Sep 2022 1 mins Presentations & Speaking

Tento týden se konají dvě akce, kde budete mít možnost poslechnout si několik mých přednášek.

První v pořadí je SQL Server Bootcamp 2022, kde si budete moci poslechnout Autoincrement (identity) není jediná možnost jak generovat PK. Následovat bude WUG Days 2022, kde mám Entity Framework Core 7 – Co nás čeká, Co čekat od .NET 7 a C# 11 – Co nás čeká.

Techorama (NL) 2022

6 Sep 2022 1 mins Presentations & Speaking

After the Belgium version Techorama is going to Netherlands, in October 10-12. I was lucky one of my session was selected – C# Source Generators – let the machine do the programming.

.NET DeveloperDays 2022

29 Aug 2022 2 mins Presentations & Speaking

Oh yeah. .NET Developer Days 2022 is coming. Can’t wait to be there. This year, I’ll be doing workshop as well as sessions. Lucky me.

Easier nullable reference types errors instead of warnings

24 Aug 2022 1 mins C#, MSBuild, Roslyn

Three years ago (yes, I looked it up), I wrote a blog post about switching from warnings in NRT to errors. But it required manually adding codes for all the warnings (luckily thanks to Roslyn being open source, it’s not that difficult) and keeping that list up to date. But recently I found much simpler way.

WUG: Menší, ale o to zajímavější novinky v .NET 6 (online)

21 Jun 2022 1 mins Presentations & Speaking

Můj výběr malých, ale přesto zajímavých, novinek v .NETu 6. Dnes 21.6.2022 od 17:00.

Rockin’ The Code World with dotNetDave

2 Jun 2022 1 mins Presentations & Speaking

This Saturday (June 4th) at 19:00 (CEST) you can join the Rockin’ The Code World with dotNetDave live stream and listen to me and David McCarter talking about stuff like evolution of C#, databases, .NET performance, Entity Framework, open-source and probably more.

Gopas TechEd 2022

9 May 2022 1 mins Presentations & Speaking

Příští týden se bude konat Gopas TechEd. Po několika letech online verzí, tentokrát v hybridním provedení. Letos si z mé strany můžete poslechnout jednu in-person i online přednášku a dvě čistě online.

Ask Jiri: Ukládání IP adres do databáze, plus IPv6

28 Apr 2022 1 mins Ask Jiri

Sometimes people ask me a question where the answer requires some kind of dialogue or follow-up questions and/or is too long to type. Thus, I’m trying new way of recording the conversation and then posting it for anybody to watch.

Sometimes it is in Czech (like this one), sometimes in English. Sometimes one person (and me), sometimes multiple.

Do you have an interesting question? Send me an email and let’s chat about it.

Now, here’s the recording:

ADO.NET provider 9.0.0.0 for Firebird is ready (with Entity Framework Core 6.0 support)

19 Apr 2022 2 mins .NET, C#, Databases in general, Entity Framework, Entity Framework Core, Firebird, LINQ, SQL, Visual Studio

New major version 9.0.0.0 of ADO.NET provider for Firebird is ready for download. Major version number change, big changes. Buckle up.

Ask Jiri: Python očima .NETáka

14 Apr 2022 1 mins Ask Jiri

Sometimes people ask me a question where the answer requires some kind of dialogue or follow-up questions and/or is too long to type. Thus, I’m trying new way of recording the conversation and then posting it for anybody to watch.

Sometimes it is in Czech (like this one), sometimes in English. Sometimes one person (and me), sometimes multiple.

Do you have an interesting question? Send me an email and let’s chat about it.

Now, here’s the recording:

Techorama 2022

13 Apr 2022 1 mins Presentations & Speaking

I’ll be speaking at Techorama 2022 happening May 23-25. And I’m very excited about it. Over the last decade or so I was working with/for Belgium based company on and off, so Belgium has somewhat special place in my heart.

Two of my sessions were selected. First is C# Source Generators – let the machine do the programming and other is Performance with Span<T> for dummies (should I care?).

Novinky v .NET 6, které Vás určitě zajímají (IT Ráno #6)

12 Apr 2022 1 mins Presentations & Speaking

20.4.2022 od 8:30 budu mluvit v rámci akce IT Ráno, kterou pořádá Gopas, o možná trochu méně známých novinkách v .NET 6, o kterých ale přesto stojí za to vědět. Registrovat se můžete zde.

What’s the maximum number of arguments for method in C# and in .NET?

7 Mar 2022 2 mins .NET, C#

Silly question, right? Whatever the limit is, it is surely beyond what one should practically ever write. Right? But as with mine other explorations of limits, I’ll try it anyway.

Bit of FirebirdClient history

23 Feb 2022 2666 mins .NET, Firebird

With the 20 years of .NET that’s happening now and also the Celebrating 20 Years of .NET: Entity Framework I realized, I have a piece of history that would be too bad to lose.

MS Stage conference

18 Feb 2022 1 mins Presentations & Speaking

I’ll be speaking on MS Stage (online) February 25th April 1st. I’ll show you what Source Generators are and how to create one yourself.

Attribute on attribute itself

10 Feb 2022 1 mins C#

Today I learned that you could use attribute, in C#, on itself.

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