Klaus
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loeffelmann.bsky.social
Klaus
@loeffelmann.bsky.social
Working for Microsoft on .NET Desktop and the Visual Studio Out-of-Proc Designer. Loving my wife, our dogs, Sushi, #VisualBasic, $WinForms, and Retro Computing (#C64 and #6502 FTW!)
Pinned
At a #microsoft campus cafe, just recently.

Mads Torgersen and Klaus Löffelmann talk

Sharp & Unfiltered.

Not what you expect.
Definitely worth watching.

Pilot Episode coming later this month to youtube.com/@MicrosoftDe...

#sharpandunfiltered - Spread the word!
Reposted by Klaus
.NET is hiring. WinForms is looking for an SDE2 to help us drive the next version of the best UI stack of all time jobs.careers.microsoft.com/global/en/jo...
Search Jobs | Microsoft Careers
jobs.careers.microsoft.com
November 5, 2025 at 3:30 PM
Mark the date!
And spread the word!

#sharpandunfiltered
dot.net .NET @dot.net · Sep 19
WE can't wait to see what's in store... Hear what interesting goodness @MadsTorgersen and Klaus Loeffelmann (@loeffelmann) have to share. Coming September 25th.

Don't forget to subscribe to the Microsoft Developer channel on YouTube, so you don't miss it. 🔔 msft.it/63326soZEu
September 19, 2025 at 10:39 PM
At a #microsoft campus cafe, just recently.

Mads Torgersen and Klaus Löffelmann talk

Sharp & Unfiltered.

Not what you expect.
Definitely worth watching.

Pilot Episode coming later this month to youtube.com/@MicrosoftDe...

#sharpandunfiltered - Spread the word!
September 9, 2025 at 10:19 PM
@terrajobst.net, I got a new one for you:

"Objektrelationalparadigmenkonfliksgrad."

Was tippst du? :-D
April 29, 2025 at 7:57 PM
First Form in #WinForms I did completely with #CopilotEdits. If you have _THAT_ not checked out, do it. It is AMAZING! Like, completely. No code blocks written by me - just tweaked little things which were WinForms specific and the LLM wouldn't know.

What this is? Well...more to come. ;-)
February 2, 2025 at 7:38 PM
Ah, #win32 #HighDpi - what's not to love? ;-)
(Especially in Terminal Server environments like this.)

If you see those issues in #WinForms > .NET 7.0, ping me.
I want to learn about your specific scenarios!
And I can maybe help quickly!
January 29, 2025 at 11:53 PM
Hey #winforms devs!

In #dotnet 9, we've introduced WinForms specific #Analyzers to help you guide with tricky WinForms situations. We got those both for #csharp and #visualbasic. And not only are we planning to add more over time-you can also get engaged:

devblogs.microsoft.com/dotnet/intro...
WinForms: Analyze This (Me in Visual Basic) - .NET Blog
Your WinForms code might have issues—maybe an Async call picked the wrong overload, or it’s leaking data into resource files. Time to call in a code-shrink! So, WinForms, Analyze This!
devblogs.microsoft.com
January 21, 2025 at 10:16 PM
So…over the holidays I thought I would ramp up my WebDev skills which are from, what, 1998? I was aiming for #dotnet #blazor. Question is, would using #aspire be an overkill? Or even support the (re)learning process? Consider me a 72-year old German CDU politician to assess my WebDev skill set… 🤷‍♂️
December 23, 2024 at 8:43 PM
Reposted by Klaus
New YouTube... @markrussinovich.bsky.social and I learn to "take a dump" (a debugging crash dump!) www.youtube.com/watch?v=Jhga...
EPISODE 6 - Scott & Mark Learn To... Take a Dump
YouTube video by Scott Hanselman
www.youtube.com
December 12, 2024 at 12:36 AM
Hey #winforms devs! In #dotnet 9, WinForms got some new cool features for consuming modern APIs with `Control.InvokeAsync` and other async APIs. Check out the blog post here and spread the word!

devblogs.microsoft.com/dotnet/intro...
Invoking Async Power: What Awaits WinForms in .NET 9 - .NET Blog
With .NET 9, we’re bringing a suite of new async APIs to WinForms, aimed at making UI updates, dialog interactions, and control management more efficient.
devblogs.microsoft.com
December 10, 2024 at 8:12 PM