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Background Tasks in C#

In modern applications, especially web and desktop apps, executing long-running tasks on the main thread can block user interactions or degrade performance. That’s where background tasks come in. In this article, we’ll explore the different ways to run tasks in the background in C#, including: Task.Run for simple async operations. BackgroundService for long-running services in ASP.NET Core. IHostedService for more controlled services. Queued background tasks using IBackgroundTaskQueue. We’ll also provide a working example you can use as a starting point in your projects.

May 9, 2025 - 18:56
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Background Tasks in C#

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In modern applications, especially web and desktop apps, executing long-running tasks on the main thread can block user interactions or degrade performance. That’s where background tasks come in.

In this article, we’ll explore the different ways to run tasks in the background in C#, including:

  • Task.Run for simple async operations.
  • BackgroundService for long-running services in ASP.NET Core.
  • IHostedService for more controlled services.
  • Queued background tasks using IBackgroundTaskQueue.

We’ll also provide a working example you can use as a starting point in your projects.

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