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David McCarter

@dotnetdave.bsky.social

310 followers 85 following 1.8K posts

David McCarter is a Microsoft MVP, Solutions Architect, code quality expert, consultant, professional code reviewer, speaker, and author with 25+ years in software engineering. https://bit.ly/davidmvp https://dotnettips.com

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David McCarter @dotnetdave.bsky.social · 12d

🚀 It’s here: Rock Your Code (20th Anniversary, 9th ed.)—my definitive .NET 10 coding standards. Cleaner, faster, more maintainable C# for teams that ship. Get it on Amazon! #dotnet #CSharp #RockYourCode #MVPBuzz #dotnet #dotnet10
bit.ly/CodingStanda...

Rock Your Code: Coding Standards for Microsoft .NET (20th Anniversary Edition)

The 20th Anniversary Edition of Rock Your Code: Coding Standards for Microsoft .NET, authored by David McCarter, is now available on Amazon. This comprehensive guide offers updated standards for .N…

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David McCarter @dotnetdave.bsky.social · 4h

For the first time ever, Mexico is the #3 country visiting dotNetTips.com! 🇲🇽
It’s awesome to see so many .NET developers there—welcome to the community!
Are there any developer conferences in Mexico where I could come speak and meet you all?
#dotnet #MVPBuzz #RockYourCode #Mexico

David McCarter @dotnetdave.bsky.social · 23h

🚀 Want to break into tech but don’t have job experience yet? Start by building something. That’s how I launched my career—and you can too. 💻🔥
Read how writing one small app changed everything for me!
#MVPBuzz #Interviewing
dotnettips.wordpress.com/2019/01/14/w...

Write Something—Anything—to Jumpstart and Elevate Your Career

To succeed as a developer, focus on building and releasing projects. Early experience through personal apps helped the author land jobs and gain recognition. Hiring managers value practical demonst…

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David McCarter @dotnetdave.bsky.social · 23h

🚀 Boost your .NET code efficiency! Learn best practices for array allocation and improve performance with tips from the .NET team. Check it out!
#dotnet8 #MVPBuzz #CodePerformance #dotnet
dotnettips.wordpress.com/2025/03/05/m...

Microsoft .NET Code Analysis: Creating Empty Arrays

Arrays are a key collection type in .NET. There are three methods to create empty arrays: new string[0], Array.Empty(), and the concise [] expression. Benchmark tests show the [] expression is the …

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David McCarter @dotnetdave.bsky.social · 23h

Learn the best practices for checking strings for null in your code! 💻 Whether it's `== null`, `is null`, or `string.IsNullOrEmpty()`, find out which method to use and why.
#dotnet8 #MVPBuzz #dotnet #CodePerformance

Code It Any Way You Want: Checking Strings for Null

The article discusses best practices for checking strings for null in coding. It outlines three common methods: using == null, is null, or string.IsNullOrEmpty().

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David McCarter @dotnetdave.bsky.social · 23h

Boost your .NET collections with Span & MemoryExtensions! 🚀 Learn how to slash memory allocations & boost performance in common tasks like sorting, searching, and reversing. Check out the benchmarks in my latest article!
dotnettips.wordpress.com/2024/10/15/s...
#dotnet #performance #MVPBuzz

Supercharging .NET Collections with Span and MemoryExtensions

This article discusses optimizing code efficiency in .NET using Span and MemoryExtensions for collection operations. It highlights significant performance improvements in common tasks such as findi…

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David McCarter @dotnetdave.bsky.social · 1d

It's still in the 90s in Texas 😕

David McCarter @dotnetdave.bsky.social · 1d

In 2022, the font size in the prompt box got smaller??? That's not good for us older developers! 👓

David McCarter @dotnetdave.bsky.social · 1d

I am really pleased with the performance numbers I am seeing in .NET 10! .NET continues to get faster and faster!
#dotnet10

David McCarter @dotnetdave.bsky.social · 1d

.NET 10.0.100-rc.2 SDK has just dropped! I'm downloading now! 🎸
dotnet.microsoft.com/en-us/downlo...
#dotnet

David McCarter @dotnetdave.bsky.social · 1d

Oh, I thought that with 2026, they are cutting us off. As long as 2022 works with .NET 10, I'm good. 😀

David McCarter @dotnetdave.bsky.social · 1d

🎉 Attention Øredev 2025! 🎉
Want a FREE autographed hardbound copy of my brand-new coding standards book?
Easy: come to my session, grab a seat up front, and keep your phone ready! 📱📖
#RockYourCode #Oredev2025 #CodingStandards
bit.ly/CodingStanda...

Rock Your Code: Coding Standards for Microsoft .NET (20th Anniversary Edition)

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David McCarter @dotnetdave.bsky.social · 1d

I don't know what is going on with VS but it's been struggling for awhile. Stopping Preview in 6 days with issues in 2026, including features are missing and there has been hardlly any testing on it! The current Copilot Chat has so many issues it's really failing. Maybe they should hire an MVP! 😆

David McCarter @dotnetdave.bsky.social · 1d

🧑💻 Attention software developers!
Have you or your company tried letting AI generate most of your app or service code?
How did it go — 🚀 amazing, 😐 no change, or 💥 a disaster?
I'm gathering stories for a possible article — share your experiences below or DM me! #SoftwareDevelopment #AI #Coding

David McCarter @dotnetdave.bsky.social · 1d

🚨 Developers worldwide — WE'RE LOSING A VITAL TOOL for Visual Studio!
Microsoft is discontinuing the Multilingual App Toolkit (MAT) with no replacement.
If you value global-ready apps, help save MAT now:
🔗 bit.ly/SaveTheMAT
📢 RT to spread the word!
#dotnet #VisualStudio #i18n #SaveTheMAT #MVPBuzz

Developer Community

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David McCarter @dotnetdave.bsky.social · 1d

🎸 dotNetDave is bringing the No Rest for the Wicked World Tour to Sweden for Øredev 2025! Catch two power-packed .NET performance sessions in Malmö this November — insights, laughs, fun, and flying guitar picks included.⚡
#MVPBuzz #RockYourCode #Oredev2025
dotnettips.wordpress.com/2025/07/11/d...

dotNetDave Rocks ØREDEV DEVELOPERS CONFERENCE 2025

dotNetDave will speak at the Øredev Developers Conference in Malmö, Sweden, from November 5-7, 2025. His session focuses on optimizing .NET code performance, sharing techniques to improve execution…

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David McCarter @dotnetdave.bsky.social · 1d

Building strong foundations in software development requires more than just code. Discover the vital role of data teams in delivering feature-rich, reliable software.
dotnettips.wordpress.com/2024/07/07/b...
#Tech #SoftwareDevelopment #SoftwareEngineer

Building Strong Foundations: The Crucial Role of Data in Software Development

Creating beloved software demands collective effort from various teams. Data plays a pivotal role, analogous to a building’s foundation. Neglecting the data infrastructure can lead to persist…

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David McCarter @dotnetdave.bsky.social · 1d

Optimizing Method Returns: Default Keyword vs. Null vs. Empty Collection 🚀 Benchmarks show default is 1.8x faster than null and 3,542x faster than an empty collection! 📊 Learn more.
#dotnet #dotnet8 #MVPBuzz #CodePerformance

General Performance Tip: Optimizing Method Returns

When customizing attributes, Microsoft and I both advise sealing them for clarity and performance. However, benchmark results show sealing attributes to be marginally less performant, with both out…

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David McCarter @dotnetdave.bsky.social · 1d

Boost .NET performance by reusing constant arrays! 🚀 Avoid redundant allocations by storing them as `static readonly` fields instead of passing them as method arguments. Learn how this simple change improved execution speed by 1.34x.
dotnettips.wordpress.com/2025/04/04/m...
#MVPBuzz

Microsoft .NET Code Analysis: Improve .NET Performance by Reusing Constant Arrays

In optimizing the Spargine project, I improved performance by avoiding constant arrays as method arguments. Instead, using static readonly fields reduced memory allocations significantly. This chan…

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David McCarter @dotnetdave.bsky.social · 2d

😡

David McCarter @dotnetdave.bsky.social · 2d

Wow, I just made a mind-blowing discovery in my quest to find the fastest way to write code in .NET 10 — something that’s 7,561,012x faster than alternative approaches with no allocations! I’m not kidding — I verified it twice! Stay tuned to dotNetTips.com
for the full story! 💥💻
#MVPBuzz @dot.net

David McCarter @dotnetdave.bsky.social · 3d

🚀 Boost Your .NET Projects!
Managing Windows services & processes doesn’t have to be painful.
The Services helper in Spargine makes it simple to list, start, stop, & monitor services. Save time & code smarter!
#dotnet #RockYourCode #Spargine

Boost Your .NET Projects: Simplify Windows Service and Process Management with Spargine’s Services Helper

The Spargine Services type simplifies Windows service management in .NET applications, allowing developers to efficiently load, start, stop, and check service statuses without complex API interacti…

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David McCarter @dotnetdave.bsky.social · 3d

🚀 Tired of HashSet falling apart in multi-threaded .NET code?
Boost Your .NET Projects with ConcurrentHashSet from Spargine—thread-safe, familiar API, and built for performance.
Details + NuGet here!
#dotnet #csharp #spargine #threadsafe
dotnettips.wordpress.com/2025/07/13/b...

Boost Your .NET Projects: Add Thread-Safety with ConcurrentHashSet from Spargine

The HashSet in .NET is efficient for storing unique elements but is not thread-safe. To overcome this issue, ConcurrentHashSet was created, offering thread-safe operations while maintaining HashSet…

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David McCarter @dotnetdave.bsky.social · 3d

Oh great, another "AI" recruiter bot trying to call or email me. Just a heads-up: I’m a software engineer—I build the worms that eat bots like yours for breakfast. Proceed at your own risk. ⚠️
#AIBot #JobHunting #Recruiters

David McCarter @dotnetdave.bsky.social · 3d

🚀 .NET string comparison performance matters! Benchmarking shows `Equals(str, StringComparison.OrdinalIgnoreCase)` is fastest—`Compare()` is 2,406x slower! Optimize your code & enforce CA1862. 📈🔍
#dotnet #csharp #performance #MVPBuzz

Microsoft .NET Code Analysis: Best Practices and Performance for Comparing Strings

In .NET, string comparison can be performed using methods like ==, Equals(), and Compare(), each with distinct performance metrics. The most efficient method is Equals() with StringComparison. It&#…

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David McCarter @dotnetdave.bsky.social · 3d

🚀 Cloning Objects: Microsoft's JSON serialization tip boosts efficiency! 🔄 Benchmark results: Ref types 1.015x faster than records, and 1.24x more performant than value types. Check it out.
#dotnet #dotnet8 #MVPBuzz #CodePerformance

General Performance Tip: Cloning Various Types

The post discusses the process of cloning different types of objects, with Microsoft recommending the use of JSON serialization for this purpose. The author explores the performance differences in …

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