If you tuned in to this morning’s App Development Community Standup, you know that today we released WinUI 3 Preview 3. If you want to skip the summary and head straight to the release notes and installation instructions, you can find those here. New Features The team has been hard at work on Preview 3 since the release of Preview 2 back in July. Countless bug fixes, exciting new capabilities, and
With .NET 5 released in November, it’s a good time to talk about some of the many improvements in the networking stack. This includes improvements around HTTP, Sockets, networking-related security, and other networking primitives. In this post, I will highlight some of the more impactful and interesting changes in the release. HTTP Better Error Handling In the year since .NET Core 3.1 was released
CodeZine編集部では、現場で活躍するデベロッパーをスターにするためのカンファレンス「Developers Summit」や、エンジニアの生きざまをブーストするためのイベント「Developers Boost」など、さまざまなカンファレンスを企画・運営しています。
Azure Static Web Apps with .NET and Blazor - .NET Blog
Aaron is a Developer Advocate at Microsoft. Having spent 15 years doing web development he’s seen it all, from browser wars, the rise of AJAX and the fall of 20 JavaScript frameworks (and that was just yesterday!). Always tinkering with something new he explores crazy ideas like writing your own implementation of numbers in .NET, creating IoC in JavaScript or implementing tic-tac-toe using git com
C#でSPAを実現する、Blazorコンポーネントの開発
対象読者 C#とWebシステムの基礎的な知識がある方を対象とします。C#の基本文法などの解説は割愛します。 はじめに 前回は、ASP.NET Core Blazorについての概要と開発環境、そしてBlazor WebAssemblyのテンプレートプロジェクトの作成までを解説しました。今回からは、テンプレートプロジェクトを元に、実際のアプリを作成していきます。 今回は、日記アプリを作成します。ごくシンプルなアプリでも、Blazor WebAssemblyアプリならではの手法がいろいろ必要となります。 日記アプリ 作成するアプリは次のように、カレンダー表示、テキスト入力、ボタンだけが配置されたページとなります。カレンダー部分はコンポーネントとして作成します。 日記アプリ アプリの動作は簡単です。カレンダーの日付をクリックすると、日記が書かれたデータを読み込み、表示します。「保存する」ボタンを押
Generating HTTP API clients using Visual Studio Connected Services - .NET Blog
We’re continuing our series on building HTTP APIs with .NET 5. In the first post in this series we talked about building well-described APIs using OpenAPI, and then followed that up taking a deeper dive into some of the open-source tools and packages you can use to make your HTTP API development easier. In this post, the third in the series, we’ll talk about how Visual Studio Connected Services gi
No trial. No credit card required. Just your GitHub account. .NET chiseled Ubuntu container images are now GA and can be used in production, for .NET 6, 7, and 8. Canonical also announced the general availability of chiseled Ubuntu containers. Chiseled images are the result of a long-term partnership and design collaboration between Canonical and Microsoft. We announced chiseled containers just ov
In this post, App. Dev. Manager Vishal Saroopchand showcases similarities and differences on important topics for C# developers learning Go. In my previous post, I explain my motivation and experience learning Go coming strictly from a C#/JS background. In this post, I want to update the side-by-side comparison with snippets showing similarities and differences on important topics you will encount
GitHub - Cysharp/ZLinq: Zero allocation LINQ with Span and LINQ to SIMD, LINQ to Tree (FileSystem, Json, GameObject, etc.) for all .NET platforms and Unity.
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個人的に、前々から「T4 は将来性が見えなさ過ぎてもう使うのやめたい」と言い続けていたわけですが、 最近ようやく自分が保守している T4 を全部別の手段で書き換えたので、 今日はそれの話。 T4 (Text Template Transformation Toolkit) テキスト テンプレートというと、ひな形的なテキストを簡易な文法で生成するようなものです。 例えば、 public static bool TryParse(this string s, out {{T}} x) => {{T}}.TryParse(s, out x); みたいな文字列の、{{T}} のところに bool, byte, int, double を与えて、 public static bool TryParse(this string s, out bool x) => bool.TryParse(s, ou
.NET 5 がリリースされて少し経ちますが、App Service は Early Access という形ですが .NET 5 への対応が行われたのに対して、Azure Functions は今のところ .NET Core 3.1 までの対応となっています。 少し前から Azure Functions の .NET 5 対応に関して GitHub では悪い意味で盛り上がっているのと、パッケージの更新を行うと動かなくなってしまうケースがあるため、注意喚起のために書きます。起こっていることは以下の Issue から辿れば分かります。 先に軽く概要を書いておくと、Azure Functions は v1 から v3 までのランタイムが存在していて、それぞれが .NET Framework / .NET Core 2.1 / .NET Core 3.1 をターゲットにしています。基本的には LT
.NETとXamarinの統合、クラウドネイティブ対応はどうなるのか――2021年11月ローンチ、.NET 6の最新情報
※1：Mac Catalystは、iPad AppとMac Appでコードを共有する技術です。これにより、iPad向けのアプリにMac用のコードを追加するだけで比較的簡単にMacネイティブアプリとして動かせます。 ※2：前身の「Mobile Blazor Bindings」ではiOSとAndroidのサポートがありました。今後対応予定なのかどうかは残念ながら詳しい情報がありませんが、Microsoft Build 2021のセッション内では「まずはWindowsとMacにおけるリッチなデスクトップアプリのシナリオをサポートします」とコメントがあったので、今後のサポートがあるかもしれません。 .NET MAUIはXamarin.Formsの進化版なのでXamarin.Formsと同じように利用できると考えて問題ありません。今回公開された新機能は下記の通りです。 iOS、Android、Mac
Phillip introduced C# Source Generators here. This post describes two new generators that we added to the samples project in the Roslyn SDK github repo. The first generator gives you strongly typed access to CSV data. The second one creates string constants based on Mustache specifications. Source Generators Overview It is important to have a good mental picture of how source generators operate. C
WPFで未処理の例外を処理するベストプラクティス
はじめに WPFで未処理の例外を処理する方針が、毎回わからなくなるので、ここに整理しておきます。 ベストプラクティス つぎのようにApp.xamlのStartupにイベントハンドラーを追加して private void App_OnStartup(object sender, StartupEventArgs e) { DispatcherUnhandledException += (o, args) => { // ログ出力処理 args.Handled = true; // 例外処理の中断 if ( /** アプリケーションを継続可能か判定する **/ ) { // アプリケーションが継続実行可能な場合 // ユーザーへの適切な通知処理など } else { // アプリケーションが継続不可能な場合 // ユーザーへ適切に通知したのち、リソースを解法してエラーとしてアプリケーションを終
Spectre.Console lets you make beautiful console apps with .NET Core
I've long said, as a fan of the console and text mode, that the command line is underloved. You can do accelerated 3D VR, sure, but impress me with a nice ASCII progress bar or spinner and oh my! *Chef's kiss* Enter yet another lovely Console library in the form of Spectre.Console. You may know Patrik Svensson as the creator of the wonderful Cake build system. He is also enhancing our consoles wit
Supercharge your distributed app and cloud native development with .NET Aspire by harnessing cutting-edge Azure services, components, tooling, deployment, and more for your .NET Aspire projects. Join the .NET Aspire and Azure product teams as they deep dive into essential Azure services to build world-class, cloud native applications with .NET. Crossgen2 is an exciting new platform addition and pa
Supercharge your distributed app and cloud native development with .NET Aspire by harnessing cutting-edge Azure services, components, tooling, deployment, and more for your .NET Aspire projects. Join the .NET Aspire and Azure product teams as they deep dive into essential Azure services to build world-class, cloud native applications with .NET. When writing a software, developers try their best to
No trial. No credit card required. Just your GitHub account. The .NET Productivity team (a.k.a. Roslyn) wants to help you be more productive! We’ve seen a lot of excitement in the past few months over our latest features which automate and reduce editing tasks to a single click and help save you time. In this post, I’ll cover some of the latest .NET productivity features available in Visual Studio
No trial. No credit card required. Just your GitHub account. C# 14 introduces extension members. C# has long had extension methods and the new extension member syntax builds on this familiar feature. The latest preview adds static extension methods and instance and static extension properties. We’ll release more member kinds in the future. Extension members also introduce an alternate syntax for e
.NET Core 2.1, 3.1, and .NET 5.0 updates are coming to Microsoft Update - .NET Blog
Dev Blogs.NET Blog.NET Core 2.1, 3.1, and .NET 5.0 updates are coming to Microsoft Update 12/09/2020: this post was updated to clarify that Client operating systems will get .NET Core updates via Automatic Updates, while Server operating systems will get .NET Core updates via WSUS and MU Catalog. 12/14/2021: this post was updated to reflect Hosting Bundle updates are also available on Microsoft Up
The last test is from 2019 which is still accurate but the world is changing and we have arrived at .NET 7.0 which is reason enough to spin up my test suite again and measure from .NET 4.8, 3.1, 5.0, 6.0 up to 7.0. The “old” articles are still relevant despite their age. https://aloiskraus.wordpress.com/2019/09/29/net-serialization-benchmark-2019-roundup/ https://aloiskraus.wordpress.com/2018/05/0
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JetBrains Rider and the .NET Aspire Plugin | The .NET Tools Blog
With the .NET 8 announcement, developers were surprised to learn of a new opinionated, cloud-ready stack for building observable distributed applications. Of course, we’re talking about .NET Aspire, a solution of tools and patterns delivered to developers via the NuGet workloads found in newer versions of the .NET SDK, similar to Multi-Application UI or MAUI. In this post, we’ll cover what .NET As
What's new in Windows Forms runtime in .NET 5.0 - .NET Blog
Join us on September 18th as we dive deep into building world-class cloud native applications with .NET and Azure. Since Windows Forms was open sourced in late 2018, and ported to .NET Core, both the team and our external contributors have been busy fixing old bugs and adding new features. In this post we are going to talk about what’s new in Windows Forms runtime in .NET 5.0. Windows controls add
Announcing Polyglot Notebooks! Multi-language notebooks in Visual Studio Code - .NET Blog
We are excited to announce that Polyglot Notebooks, Visual Studio Code’s multi-language notebook extension, is now generally available in the VS Code Marketplace! Please note: While the Polyglot Notebooks extension in Visual Studio Code is now generally available, the .NET Interactive APIs that power it are still in preview. What are Notebooks? If you’re not familiar with notebooks – stop here! A
A new MSBuild editing experience - Visual Studio Blog
Calling all developers, creators, and the AI innovators to join us in Seattle and refactor your skills, May 19-22 MSBuild is a fundamental part of the .NET development experience, but it can be challenging to new and experienced developers alike. To help developers better understand their project files and access advanced functionality that requires editing the project file directly, we’re releasi
レコード型 C# 9.0 で、レコード型(records)という新しい種類の型が追加されました。 record (記録)という名前通り、データの読み書きに使うことを意図した型です。 例えば以下のような書き方で、「Name という文字列と Birthday という日付」を読み書きできます。 using System; record Person(string Name, DateTime birthday); 詳しくは「レコード型」で説明します。 init-only プロパティ 以下のように init という新しいアクセサーを使って、「オブジェクト初期化子までは書き換え可能で、それ以降は書き換えできないプロパティ」を作れるようになりました。 var p = new Point { X = 1, Y = 2 }; p.X = 3; // ダメ。 class Point { public int
Why and How to Execute GraphQL Queries in .NET - .NET Blog
No trial. No credit card required. Just your GitHub account. Most (if not all) projects are consuming APIs to get data, and there many ways to do it. One of the most popular ways is to use REST APIs. However, REST APIs have some limitations, such as over-fetching (forcing the client to load all properties even when only a few are needed for the UI). GraphQL is a great alternative to REST APIs beca
2025-04-07: AutoMapper and MediatR Going Commercial, MassTransit v9 to Commercial, Teams Push Notification Hub migrated to .NET 8 - WeekRef.NET
2025-04-07: AutoMapper and MediatR Going Commercial, MassTransit v9 to Commercial, Teams Push Notification Hub migrated to .NET 8 トピックス AutoMapper and MediatR Going Commercial https://www.jimmybogard.com/automapper-and-mediatr-going-commercial/ AutoMapper と MediatR のライセンスを変更し商用化を予定していることについて。 記事では商用化を決めた経緯について触れられている。現時点で具体的な日付/バージョンは決まっていない。 Announcing MassTransit v9 https://masstransit.io/introd
非同期処理ブートキャンプ【2025年版】
はじめに 扱っている内容 非同期処理のしくみ IEnumerator や Unity コルーチンとの比較 async や await がコンパイル結果に与える影響 並列処理と並行処理（＝非同期処理） デッドロック、その原因と対策 起動済みタスクという状態 再利用可能な Unity コルーチン ValueTask、キャンセルが何故難しいか、ConfigureAwait やその他のアレコレ うっすら言及 await するには async が必要だが await される側に async は不要 扱っていない話題 Task-like 型 https://qiita.com/inasync/items/6417933e258b53b5bbd3 GetAwaiter メソッド ダックタイピング Awaiter/Awaitable 型 INotifyCompletion または ICriticalNot
With the release of .NET5 Preview 8, we have introduced a streamlined way for .NET developers to access the set of Windows Runtime (WinRT) APIs that are shipped as part of Windows. .NET5 applications can now access Windows APIs through a new set of Target Framework Monikers (TFMs), which have been extended to support platform specific APIs. This is the recommended mechanism for .NET going forward.
Elevating C# Code Quality with Qodana: A Journey Towards Perfection | The .NET Tools Blog
IDEs CLion DataGrip DataSpell Fleet GoLand IntelliJ IDEA PhpStorm PyCharm RustRover Rider RubyMine WebStorm Plugins & Services Big Data Tools Code With Me Quality Assurance JetBrains Platform Scala Toolbox App Writerside JetBrains AI Grazie Team Tools Datalore Space TeamCity Upsource YouTrack Hub Qodana CodeCanvas .NET & Visual Studio .NET Tools ReSharper C++ Languages & Frameworks Kotlin Ktor MPS
.NET Interactive Preview 3: VS Code Insiders and .NET Polyglot Notebooks - .NET Blog
***Please note this post is outdated. The .NET Interactive Notebooks Extension is now named Polyglot Notebooks. See here to learn more: https://devblogs.microsoft.com/dotnet/dotnet-interactive-notebooks-is-now-polyglot-notebooks/ *** In .NET Interactive Preview 2, we announced that in addition to Jupyter Notebook and Jupyter Lab, users could use nteract as well. In this preview, users can add VS C
Announcing .NET Community Toolkit 8.1! Better, faster MVVM source generators, .NET 7 support, and more! - .NET Blog
Dev Blogs.NET BlogAnnouncing .NET Community Toolkit 8.1! Better, faster MVVM source generators, .NET 7 support, and more! We’re happy to announce the official launch of the 8.1 release of the .NET Community Toolkit! This new version includes highly requested new features, bug fixes, and massive performance improvements to the MVVM Toolkit source generators, to make the developer UX when using them
Productivity comes to .NET MAUI in Visual Studio 2022 - .NET Blog
No trial. No credit card required. Just your GitHub account. Today, we’re excited to announce that .NET Multi-platform App UI has graduated from preview and is available in the release edition of Visual Studio 2022 on Windows. Now, you have full access to productivity features that will help you build cross-platform native client apps with .NET faster than ever, and ship them to Android, iOS, macO
.NET Interactive with SQL!| .NET Notebooks in Visual Studio Code - .NET Blog
***Please note this post is outdated. The .NET Interactive Notebooks Extension is now named Polyglot Notebooks. See here to learn more: https://devblogs.microsoft.com/dotnet/dotnet-interactive-notebooks-is-now-polyglot-notebooks/ *** In our last post, we announced that you can create .NET Notebooks in Visual Studio Code. Today we are announcing that .NET Interactive now ships with T-SQL support in
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Announcing WinUI 3: Preview 3
.NET 5 Networking Improvements - .NET Blog
AWS、.NET Frameworkから.NET Coreへの移植を支援するツールをオープンソースとして公開
Announcing .NET Chiseled Containers - .NET Blog
Go and C# Comparison - Developer Support
必ず、かの邪知暴虐の T4 を除かねばならぬと決意した
Azure Functions の .NET 5 対応と関係する注意点 - しばやん雑記
New C# Source Generator Samples - .NET Blog
Conversation about crossgen2 - .NET Blog
Loop alignment in .NET 6 - .NET Blog
What's new in .NET Productivity - .NET Blog
C# 14 - Exploring extension members - .NET Blog
.NET Serialization Roundup 2022
.NET 7のPreviewを使ってDockerfileを使わずにコンテナをビルドしてみる。 - Qiita
C# 9.0 の新機能
Calling Windows APIs in .NET5
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