Stuart Lang

A look at C# Action and delegates

Sun, 18 Sep 2016 21:33:54 GMT

So I'm current trying to build an in-memory service bus, the idea is it would mimic AWS Topics and Queues which can be used to create a pub-sub...

A Look at JsonDocument and System.Text.Json

Sun, 04 Aug 2019 17:35:47 GMT

Learn how to use System.Text.Json's JsonDocument API for efficient, low-allocation JSON parsing with asynchronous stream support in .NET.

A Visual Guide to Making A NuGet Package Debuggable

Thu, 20 Feb 2020 11:44:24 GMT

So we want to share our library in a NuGet package, and allow for the consumers to be able to step into our code to debug it, it's part of being a...

Adding AssemblyMetadataAttribute using new SDK project, with MSBuild

Mon, 26 Mar 2018 19:20:36 GMT

Want to embed git commit hashes or other metadata in your assemblies? Here's how with MSBuild.

Async in C#: The good, the bad and the ugly

Sun, 11 Jun 2017 10:54:07 GMT

Recently I have come to notice that there is a lot of confusion and mistakes make with async in C#, and in using async and await. I think this...

BigInteger to String in Any Base with F#

Sat, 01 Dec 2018 23:19:09 GMT

I needed to print a BigInteger in any base, and there was nothing built-in. Here's my F# solution.

Do Away with Static Image Placeholders with BlurHash on Xamarin

Fri, 06 Mar 2020 15:00:27 GMT

What do you show while images load? BlurHash gives you nice blur previews instead of boring placeholders.

C# 8.0 Non-nullable Reference Types

Sat, 08 Dec 2018 22:29:00 GMT

I'm beginning to play with the new C# 8.0 non-nullable reference types on an existing codebase and I find that I am asking myself the same few...

Check for Breaking Changes with ApiCompat

Sat, 28 Dec 2019 16:36:48 GMT

Wouldn't it be great if your build warned you about breaking API changes? Here's how with Microsoft.DotNet.ApiCompat.

Creating Your Own Metapackage With Microsoft.Build.NoTargets

Sun, 11 Mar 2018 22:42:55 GMT

In the new .NET eco-system, metapacakges are a common concept, that is a NuGet package that contains nothing other than specifying dependencies on...

C# 8.0 and .NET Standard 2.0 - Doing Unsupported Things

Tue, 15 Oct 2019 11:13:48 GMT

C# 8.0 isn't officially supported on .NET Standard 2.0, but that doesn't mean we can't use it anyway.

[RFR] Debugging - Stepping into ASP.NET Core source with Rider

Mon, 03 Jun 2019 06:23:16 GMT

TL;DR; To get the most out of debugging .NET code with Rider, add the following to your Symbol server: http://msdl.microsoft.com/download/symbols How...

Defer with C# 8.0

Wed, 30 Oct 2019 21:59:19 GMT

Exploring how to implement Go's defer keyword in C# 8.0 using IDisposable and the new using declaration syntax.

Displaying Images in iTerm from .NET Console Apps

Sun, 02 Sep 2018 18:32:00 GMT

How to display inline images in iTerm2 from .NET console applications using escape sequences.

.NET Core 3 Local Tools

Fri, 27 Sep 2019 22:24:27 GMT

.NET Tools are great, but sometimes you don't want them global. Here's how local tools work in .NET Core 3.

.NET Framework Reference Assemblies via NuGet

Sun, 05 May 2019 13:30:28 GMT

The easy way to build .NET Framework on macOS, Linux, or Docker - just add a NuGet package.

.NET Framework Support for .NET Standard 2.0

Tue, 28 Aug 2018 16:50:54 GMT

The messy story of .NET Standard 2.0 support on .NET Framework 4.6.1, and what you can do about it.

Embedded Source, snupkgs and Sourcelink

Sun, 18 Nov 2018 21:42:51 GMT

When you build libraries for other people/teams to use, you often want them to be able to debug it. In .NET we have a number of concepts that enable...

[RFR] C# - Embrace the brace-less

Sun, 01 Jul 2018 16:17:05 GMT

Over the past few years I have come across a number of developers who prefer to include braces rather than use the brace-less form of if statements,...

Exploring TimeProvider

Mon, 28 Oct 2024 00:17:30 GMT

.NET 8 introduced TimeProvider, an abstract type which allows for easier control of the

F# beginners, no abstraction too small

Sat, 15 Oct 2016 17:27:47 GMT

Lets look at refactoring some simple code to see what I'm talking about. let gmtTz = TimeZoneInfo.FindSystemTimeZoneById "GMT Standard Time" let...

F# Loops for C# Developers

Thu, 31 Jan 2019 12:28:06 GMT

For C# developers picking up F# for the first time, there is usually a lot of googling involved to translate some of the concepts from C#. An early...

Generating a Typed Client for use with HttpClientFactory using NSwag

Mon, 18 Mar 2019 09:29:00 GMT

Generate typed HTTP clients from Swagger/OpenAPI specs using NSwag, configured for use with HttpClientFactory in ASP.NET Core.

How to dotnet build and Target net4x on macOS

Mon, 24 Sep 2018 19:01:37 GMT

Getting 'reference assemblies not found' when building .NET Framework on macOS? Here are two workarounds.

IAsyncEnumerable - An Introduction

Thu, 14 Jun 2018 14:56:13 GMT

An introduction to IAsyncEnumerable in C#, covering the problem it solves, how to produce and consume async sequences, and C# 8.0 support.

IAsyncEnumerable - Part 2

Sun, 03 Jun 2018 10:50:02 GMT

Throttling and semaphores might seem like totally different concepts, and they are, but there is a shared visual model that I find useful when...

Managing Package Versions Centrally

Mon, 15 Jun 2020 11:04:42 GMT

Use Directory.Packages.props to centrally manage NuGet package versions across all projects in your .NET solution.

MetadataLoadContext - Reflecting on External Assemblies

Tue, 20 Oct 2020 19:53:36 GMT

Introduction Recently I was working on a tool that analyzes build artifacts to determine what types were being used, and would reflect on those types...

Metaprogramming with C#

Mon, 05 Jul 2021 19:55:36 GMT

Intro Outline problem, JustSaying document message producers and consumers. I need to answer two questions from a code-base: * What types represents...

Miscellaneous C# Async Tips

Mon, 03 Dec 2018 07:50:29 GMT

A random collection of async tips I've picked up over the years that you might not have seen before.

.NET Standard, .NET Runtime, .NET SDK and versions

Tue, 28 Aug 2018 15:30:58 GMT

Back in the days of the full .NET Framework, things were very simple, you'd typically talk about the version of .NET you were using and could get...

.NET 5 SDK Hidden Gems

Mon, 26 Oct 2020 16:53:16 GMT

There are a lot of exciting changes coming with .NET 5, but in this post I wanted to call out a couple of improvements that come with the new SDK...

Pattern Matching F# Union Types in C# 7

Fri, 27 Jul 2018 13:26:27 GMT

Using C# 7's pattern matching to consume F# discriminated unions, with examples and workarounds for edge cases.

Pro Tip: using static Microsoft.AspNetCore.Http.StatusCodes

Fri, 08 Nov 2019 18:10:34 GMT

Use 'using static' with Microsoft.AspNetCore.Http.StatusCodes for cleaner, more readable HTTP status code references in ASP.NET Core.

Property Based Testing your API Response Types with F#

Fri, 15 Nov 2019 20:49:36 GMT

Use property-based testing with FsCheck to automatically verify your F# API response types match your OpenAPI specification.

PublicApiAnalyzers

Sun, 02 Feb 2020 23:00:15 GMT

Following on from the topic of my previous post, when we are maintaining a library we have a duty be very considered about the public API we expose...

Roslyn Code Analysis With F#

Sun, 18 Sep 2016 21:21:22 GMT

Roslyn is an excellect set of libraries with provides the compilation services for C# and VB.NET, this drives features such as code compilation (well...

Testing with HttpClient Interception

Sun, 24 Mar 2019 20:45:24 GMT

How to use JustEat's HttpClient Interception library to write effective unit tests for typed HTTP clients in .NET.

Trying Out Daily Builds of Roslyn

Wed, 30 Oct 2019 21:40:35 GMT

How to use Microsoft.Net.Compilers.Toolset to test daily builds of the Roslyn C# compiler in your .NET Core projects.

F#, partial application, currying, and deferred execution

Sat, 15 Oct 2016 17:15:36 GMT

int -> int -> int vs int -> (int -> int) // Step 1 let myFunc x = let value = somethingslow () value + x // Step 2 let myFunc = fun x -> ...

Embedded symbols and embedded source

Sun, 21 Jan 2018 23:22:21 GMT

Embedded symbols and embedded source // TODO intro pdbs For a long time, .NET has suffered from the problem where you want to step through 3rd party...

Updating Web Libraries to Support ASP.NET Core 3

Sun, 03 Nov 2019 11:31:59 GMT

If you are maintaining a library has a dependency on Microsoft.AspNetCore.* (or one of the , then you need to consider the things in this post to...

How I Use VS Code for Code Highlighting in My Blog

Sun, 29 Jul 2018 11:15:31 GMT

A workflow for embedding VS Code syntax-highlighted code snippets in blog posts using a dotnet global tool.

Video - An Intro into Async Streams & Channels

Wed, 04 Mar 2020 10:23:39 GMT

Watch a recorded demo on C# async pitfalls, async streams, and System.Threading.Channels from DDD North.

Xamarin Forms Accessible Headings

Mon, 02 Sep 2019 18:34:00 GMT

How to add VoiceOver heading accessibility traits to Xamarin Forms iOS apps using attached properties and effects.