Category: C#
.NET 10.0 dotnet run app.cs or file-based program
August 13, 2025 5 minutes read This post covers a new .NET 10 feature that lets you build and run a single C# file without creating a .csproj project file....
C# 14 Extension Members: Also Known as Extension Everything
August 12, 2025 4 minutes read C# 14 introduces extension members — also known as extension everything. The New C# 14 Extension Method Syntax The example below demonstrates how to...
Modern C# Hello World
August 11, 2025 6 minutes read With Visual Studio 2022 when you create a new console project based on .NET 6 or upper, the Hello World source code generated is ...
C# ValueTuple Full Guide
July 28, 2025 9 minutes read C# 7.0 introduced ValueTuple in 2017, making it easier to work with lightweight data structures.Here’s an example using ValueTuple with the () syntax to...
C# Async/Await Explained: Complete Guide with Examples [2025]
July 14, 2025 9 minutes read Mastering async / await in C# is key to building fast, scalable .NET apps. Introduced in C# 5 in 2012, these keywords transformed how...
Architecture of a .NET Application: 8 Case Studies
July 10, 2025 8 minutes read This recent question on Reddit’s Number of projects per solution led to interesting debates. The answer depends on the app’s size and domain. In...
Clean Architecture in ASP.NET Core
July 7, 2025 9 minutes read As applications scale, flexibility and maintainability become essential. .NET Core Clean Architecture provides a clear structure with minimal dependencies, making it a popular choice....
C# Pattern Matching Explained (2025)
June 17, 2025 7 minutes read Pattern matching in C# involves assessing an expression to see if it fits one or several particular condition—like checking if it’s of a...
C# DateTime Format In A Nutshell
June 16, 2025 7 minutes read This article covers C# DateTime Format, addressing both of its main aspects: Obtain a date-formatted string. Use a pattern like "yyyy-MM-dd HH:mm:ss" to extract and...
Vertical Slice Architecture in ASP.NET Core
June 10, 2025 6 minutes read The organization of code in a solution is a subject of frequent debates. Currently, two prominent approaches have garnered attention: Clean Architecture versus Vertical...
Visual Studio vs Visual Studio Code: The Ultimate Guide (2025)
June 1, 2025 8 minutes read Despite their similar name, Visual Studio and Visual Studio Code are two distinct products created by Microsoft. Visual Studio is a full-featured Integrated Development...
C# Index and Range Operators Explained
May 24, 2025 3 minutes read In this post, we comprehensively demystify the C# index ^ and range .. operators. The index operator ^ Let’s start with the index ^...
C# String Interpolation Explained
May 14, 2025 4 minutes read C# String Interpolation is a powerful feature that simplifies the syntax for embedding variables and expressions within strings to construct strings dynamically. String interpolation...
WPF vs WinForms – Making the Right Decision in 2025
May 12, 2025 8 minutes read If you’re a developer faced with the decision of selecting between Windows Presentation Foundation (WPF) and Windows Forms (WinForms) commonly referred to as WPF...
Class vs Struct in C#: Making Informed Choices
May 11, 2025 9 minutes read In C# programming, choosing the right data type between classes and structs is a crucial decision that impacts application performance and design. Choosing Between Struct...
Improve C# code performance with Span<T>
March 24, 2025 9 minutes read Welcome to our deep dive into System.Span<T> and System.ReadOnlySpan<T>. Introduced in C# 7.2 (2017) and supported by the .NET Core runtime, these powerful structures...
C# Optional Parameters Explained
March 18, 2025 3 minutes read C# optional parameters enable methods, constructors, indexers and delegates to be called without specifying all arguments. This simplifies method calls and improves readability by...
.slnx The New .NET Solution XML File Format
March 17, 2025 3 minutes read On March 13th, 2025 Microsoft officially announced the a new .NET solution file format with file extension .slnx. For example for this simple solution:...
C# Array and List Fastest Loop in 2025
January 9, 2025 5 minutes read Discussions about the fastest way to loop through an array (T[]) and a List<T> in C# have been ongoing. Results can vary with each...
The attribute OverloadResolutionPriority in .NET 9 and C# 13
December 12, 2024 2 minutes read With .NET 9, we gain a new tool for managing method overloads: OverloadResolutionPriorityAttribute declared in the namespace System.Runtime.CompilerServices. It lets you set an overload’s...
C# 13 params collections
December 3, 2024 3 minutes read Here is a quick post to explain how the upcoming C# 13 params collections feature frees your code from many allocations. C# params prior...
.NET 9.0 LINQ Performance Improvements
November 19, 2024 5 minutes read NET 9.0 brings significant improvements to LINQ performance, with some scenarios showing remarkable gains. Let’s take a closer look at what’s driving these enhancements....
Alternate Lookup for Dictionary and HashSet in .NET 9
November 18, 2024 3 minutes read In .NET 9, a new method called GetAlternateLookup<TKey, TValue, TAlternate>() has been introduced for hash tables classes, including Dictionary<TKey, TValue>, HashSet<T>, ConcurrentDictionary<TKey, TValue>, FrozenDictionary<TKey,...
Why Is Counting Lines of Code (LOC) Useful?
November 7, 2024 2 minutes read In the previous post How do you count your number of Lines Of Code (LOC) ?, we explained how to count the LOC of...
How do you count your number of Lines Of Code (LOC) ?
November 6, 2024 2 minutes read Counting Lines of Code (LOC) is not as straightforward as it seems. Developers often wonder: Should method signature declarations count? What about lines with...
The problem with frameworks
October 31, 2024 3 minutes read I just watched this short 2:39 video from Uncle Bob, and it rang a bell. His books inspired me two decades ago to create...
Find C# Code Duplicate
October 22, 2024 3 minutes read Duplicate code copy-pasted is problematic. It increases maintenance efforts and the risk of inconsistencies. Changes made in one instance may not be reflected in...
Fastest C# Enum to String
July 15, 2024 3 minutes read This article benchmarks various ways to obtain a string from an enumeration value in C# .NET, along with other common enumeration APIs. At NDepend,...
Readonly, Immutable, and Frozen Collections in .NET
July 1, 2024 4 minutes read In modern software development, immutability is a powerful concept. The .NET Base Class Library (BCL) offers readonly, immutable, and frozen collections. This terminology might...
When to create a new .csproj?
June 24, 2024 5 minutes read Recently, a question has been raised on Reddit/r/dotnet: When should you create a new .csproj? This is a crucial consideration for every .NET team....