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Lucian Wischik and I presented an “async clinic” at the MVP Summit in Bellevue this week. The async/await keywords in C# and Visual Basic drastically simplify asynchronous programming, but that of course doesn’t mean that using them is without any gotchas: the goal of the discussion was to highlight some of the key areas in which we see developers struggling with asynchronous development and to h
概要 C# 5.0のasync/awaitがなかったころ、少し複雑目な非同期制御フローをどうやって実現していたかという話。 C# 5.0を使えない状況下で非同期処理を書くことになった場合の参考としてや、async/awaitがどうやって実現されているかを知るきっかけになると思います。 サンプル コード（ZIP 形式。proj/sln 含め一式。） ポイント C# 5.0（await演算子）便利だなー await演算子が内部的にやっていることは、イテレーターに近い なので、昔はイテレーターを使って非同期処理をすることが結構あった サンプルの要件 今回の例として使うのは、Figure 1に示すような、確認ダイアログ表示のフロー。 確認ダイアログを表示する例 要は、何かを実行するにあたって、特定条件下では確認ダイアログの表示が必要で、すべてのダイアログで「OK」を押したときにだけ実行に移るという
Reactive Extensions(Rx)の利点ってなんですかー、というと、合成可能なんです！ということです。合成可能って何？というと、LINQが使えるということなんです！です。じゃあ他には、ということで…… 詳しくはこの動画/スライド見るといいです。 Curing Your Event Processing Blues with Reactive Extensions (Rx) | TechEd Europe 2012 | Channel 9。最初のほうの例が非常に分かりやすいので、とりあえずその部分だけ引っ張ってきますと // sender, argsの型がふわふわ exchange.StockTick += (sender, args) => // senderの型が消えてる { if (args.Quote.Symbol == "MSFT") { // 合成できないからイベント
by Rick Anderson This tutorial will teach you the basics of building an asynchronous ASP.NET Web Forms application using Visual Studio Express 2012 for Web, which is a free version of Microsoft Visual Studio. You can also use Visual Studio 2012. The following sections are included in this tutorial. How Requests Are Processed by the Thread Pool Choosing Synchronous or Asynchronous Methods The Sampl
by Rick Anderson This tutorial will teach you the basics of building an asynchronous ASP.NET MVC Web application using Visual Studio Express 2012 for Web, which is a free version of Microsoft Visual Studio. You can also use Visual Studio 2012. A complete sample is provided for this tutorial on github https://github.com/RickAndMSFT/Async-ASP.NET/ The ASP.NET MVC 4 Controller class in combination .N
Archived MSDN and TechNet Blogs 1/21/2020 2 minutes to read MSDN and TechNet blog sites have been retired, and blog content has been migrated and archived here. Archived blogs are grouped alphabetically by the initial letter of the blog name. Blogs and blog posts can be searched by their names, using the Search box at the top of the page. Actively updated blogs have been moved to other blog sites,
Archived MSDN and TechNet Blogs 1/21/2020 2 minutes to read MSDN and TechNet blog sites have been retired, and blog content has been migrated and archived here. Archived blogs are grouped alphabetically by the initial letter of the blog name. Blogs and blog posts can be searched by their names, using the Search box at the top of the page. Actively updated blogs have been moved to other blog sites,
Watch Azure Developers - .NET Aspire Day 2024 on-demand! Dive deep into building world-class cloud native applications with .NET and Azure using .NET Aspire! Developers often ask for guidance on how to write responsive user interfaces. Reading most books about the .NET Framework over the past ten years, you’ll see coverage of the asynchronous programming model which requires a lot of careful atten
Overview Asynchronous, event-driven "reactive" programming is way too hard in today's world of development tools and frameworks. The huge amount of manual and error-prone plumbing leads to incomprehensible and hard to maintain code. As we reach out to services in the cloud, asynchronous programming is the way of life, requiring a fresh look on the problems imposed by reactive programming. Centered
Archived MSDN and TechNet Blogs 1/21/2020 2 minutes to read MSDN and TechNet blog sites have been retired, and blog content has been migrated and archived here. Archived blogs are grouped alphabetically by the initial letter of the blog name. Blogs and blog posts can be searched by their names, using the Search box at the top of the page. Actively updated blogs have been moved to other blog sites,
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