Tag: csharp · Just Some Code

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#csharp

2026

2026-04-10 TIL: How to Read Invalid Fields as Null with CsvHelper
2026-03-11 TIL: How to Set Up a Unilateral One-to-One Relationship with Entity Framework Core
2026-03-09 Building a Reusable Blazor Component for Summernote
2026-02-26 BugOfTheDay: Entity Framework Core And SQL Server Have Different Takes On Truncating Strings
2026-02-04 TIL: Blazor Breaks When Others Touch the DOM
2026-01-13 TIL: What Entity Framework Core Do With Nullable Foreign Keys

2025

2025-12-20 Advent of Code 2025 in Summary
2025-12-18 Advent of Code Day 12: Packaging Presents
2025-12-17 Advent of Code Day 11: Connecting the Reactor With a Server Rack
2025-12-16 Advent of Code Day 10: Initializing Factory Machines
2025-12-15 Advent of Code Day 9: Finding the Largest Rectangle of Red Tiles
2025-12-14 Advent of Code Day 8: Connecting Junction Boxes
2025-12-13 Advent of Code Day 7: Splitting Tachyon Beams
2025-12-11 Advent of Code Day 6: Doing Cephalopods' Math
2025-12-10 Advent of Code Day 5: Counting Fresh Ingredients
2025-12-07 Advent of Code Day 4: Counting Rolls of Paper
2025-12-04 Advent of Code Day 3: Calculating the Joltage of Batteries
2025-12-03 Advent of Code Day 2: Finding Invalid Product IDs
2025-12-02 Advent of Code Day 1: Unlocking the North Pole
2025-11-18 BugOfTheDay: Blazor Input Control Won't Turn Red
2025-11-04 Senior C# Dev Reacts to Reddit's /csharp (Hot Takes Only)
2025-08-09 I'm Stealing Some of Reddit's C# Extension Methods
2025-06-26 How to Split an Array Into Odd Pairs (An Interview Exercise)
2025-06-11 TIL: You Don't Need AsNoTracking() When Projecting Entities With Entity Framework Core
2025-05-11 How To Find All 3-Digit Numbers In A Binary Tree
2025-03-30 An Easy Mnemonic to Format Dates As Strings in C#
2025-03-20 I Asked Phind and Copilot to Solve an Interview Exercise—Their Solutions Surprised Me
2025-03-06 How to Better Organize Your Program.cs File in ASP.NET Core Apps
2025-02-28 What Frustrates Me the Most as a C#/.NET Developer
2025-02-13 TIL: AutoMapper Only Considers Simple Mappings When Validating Configurations
2025-02-06 Essential First Steps for Unit Testing in C#
2025-01-25 Missed the Last 10 Years of C#? Read This (Quick) Guide
2025-01-24 TIL: How To Ignore Unmapped Fields in the Destination Type With AutoMapper
2025-01-22 TIL: Configure Default Values for Nullable Columns With Default Constraints in EntityFramework Core

2024

2024-11-30 This Is Why We Don't Test Private Methods
2024-11-14 Getting Rid of Nulls Is Indeed A Good Idea
2024-11-12 Two Alternatives to Assertion Messages — and Two Ideas if You Do Want To Keep Them
2024-10-30 The Power of Function Composition — to Find If an Array Is Special
2024-10-29 Using Lambda Expressions Doesn't Make Your C# Code Functional
2024-09-30 TIL: How to Use the Specification Pattern in C# to Simplify Repositories
2024-08-19 It Seems the C# Team Is Finally Considering Supporting Discriminated Unions
2024-08-05 For Cleaner Domains, Move IO to the Edges of Your App
2024-07-22 5 Unit Testing Best Practices I Learned from This NDC Conference Talk
2024-07-08 What I Don't Like About C# Evolution: Inconsistency
2024-06-10 Testing DateTime.Now Revisited: .NET 8.0 TimeProvider
2024-04-15 Two new LINQ methods in .NET 9: CountBy and Index
2024-04-01 How to Test Logging Messages with FakeLogger

2023

2023-10-30 TIL: Five lessons while working with OrmLite
2023-10-16 TIL: How to join to subqueries with OrmLite
2023-08-07 Too many layers: My take on Queries and Layers
2023-06-26 TIL: How to pass a DataTable as a parameter with OrmLite
2023-05-29 Let's refactor a test: Speed up a slow test suite
2023-05-15 Let's refactor a test: Update email statuses
2023-04-03 Goodbye, NullReferenceException: Separate State in Separate Objects
2023-03-20 Goodbye, NullReferenceException: Option and LINQ
2023-03-06 Goodbye, NullReferenceException: Nullable Operators and References
2023-02-20 Goodbye, NullReferenceException: What it is and how to avoid it

2022

2022-12-22 Let's refactor a test: Remove duplicated emails
2022-12-21 To Value Object or Not To: How I choose Value Objects
2022-12-20 Dump and Load to squash old migrations
2022-12-16 Six helpful extension methods I use to work with Collections
2022-12-15 How to create ASP.NET Core Api project structure with dotnet cli
2022-12-14 How to write good unit tests: Use simple test values
2022-12-13 TIL: Five or more lessons I learned after working with Hangfire and OrmLite
2022-12-11 TIL: How to automatically insert and update audit fields with OrmLite
2022-12-08 Let's refactor a test: Store and Update OAuth connections
2022-12-07 I'm banning Get, Set, and other method and class names
2022-12-06 How to replace BackgroundServices with a lite Hangfire
2022-12-04 On Unit Testing Logging Messages
2022-12-02 TIL: Always check for missing configuration values inside constructors
2022-12-01 How to write tests for HttpClient using Moq
2022-12-01 Advent of Code 2022
2022-08-22 Three set-like LINQ methods: Intersect, Union, and Except
2022-07-25 LINQ Aggregate Method Explained with Pictures
2022-07-11 Peeking into LINQ DistinctBy source code
2022-06-27 Four new LINQ methods in .NET 6: Chunk, DistinctBy, Take, XOrDefault
2022-06-13 Five common LINQ mistakes and how to fix them
2022-05-30 How to use LINQ GroupBy method: Two more use cases
2022-05-16 Five LINQ Methods in Pictures

2021

2021-11-08 BugOfTheDay: There are pending requests working on this transaction
2021-10-25 TIL: Dictionary keys are converted to lowercase too on serialization
2021-10-11 Don't duplicate logic in Asserts: The most common mistake on unit testing
2021-09-27 Two C# idioms: On defaults and switch
2021-09-13 My Top 16 newest C# features by version
2021-08-30 Unit Testing 101: From Zero to Hero
2021-08-16 Write custom Assertions to improve your tests
2021-08-02 Let's refactor a test: Payment report
2021-07-19 How to write better assertions in your tests
2021-07-05 Unit Testing Best Practices: A checklist
2021-06-21 Write simpler tests with Type Builders and AutoFixture
2021-06-07 Five tips for better stubs and mocks in C#
2021-05-24 What are fakes in unit testing? Mocks vs Stubs
2021-05-10 How to write tests that use DateTime.Now
2021-04-26 How to create test data with the Builder pattern
2021-04-12 How to name your unit tests: Four test naming conventions
2021-03-29 Four common mistakes when writing your first unit tests
2021-03-15 Unit Testing 101: Write your first unit test in C# with MSTest
2021-02-24 TIL: How to convert 2-digit year to 4-digit year in C#
2021-02-10 Decorator pattern. A real example in C#
2021-02-05 How to write good unit tests: Write failing tests first
2021-01-18 A quick guide to LINQ with examples

2020

2020-12-10 A case of primitive obsession. A real example in C#
2020-12-04 TIL: Always Use a Culture When Parsing Numeric Strings in C#
2020-11-17 TIL: LINQ DefaultIfEmpty method in C#
2020-11-02 How to write good unit tests: Noise and Hidden Test Values
2020-09-23 BugOfTheDay: The slow room search
2020-08-21 How to read configuration values in ASP.NET Core
2020-08-15 How to keep your database schema updated with Simple.Migrations
2020-08-11 How to create fakes with Moq. And what I don't like about it
2020-08-01 Two C# idioms: On Dictionaries
2020-07-28 Another two C# idioms
2020-06-29 How to add an in-memory and a Redis-powered cache layer with ASP.NET Core
2020-02-14 Pipeline pattern: An assembly line of steps

2019

2019-11-19 Two C# idioms
2019-09-16 How to Shift Array Elements in C# (Space Complexity)
2019-08-29 How to Solve The Two-Sum Problem in C# (Time Complexity)
2019-08-02 Postfix Notation: An Interview Exercise
2019-03-22 What the Func, Action? Func vs Action
2019-03-08 Parsinator, a tale of a pdf parser

2018

2018-11-17 The C# Definitive Guide
2018-10-22 How to handle holidays in C# with DateTimeExtensions
2018-07-18 When logging met AOP with Fody